{"id":1406,"date":"2012-11-01T19:40:22","date_gmt":"2012-11-01T19:40:22","guid":{"rendered":"http:\/\/phosdev.com\/todaysveterinarypractice\/?p=1406"},"modified":"2022-10-25T19:57:50","modified_gmt":"2022-10-25T19:57:50","slug":"dog-cat-vaccination-recommendations","status":"publish","type":"post","link":"https:\/\/navc.sitepreview.app\/todaysveterinarypractice.com\/preventive-medicine\/dog-cat-vaccination-recommendations\/","title":{"rendered":"Dogs & Cats Overdue for Vaccination: Recommendations for Updating Immunizations"},"content":{"rendered":"

Published vaccination guidelines for dogs and cats enable the clinician to implement vaccination protocols tailored for individual patients that provide protective immunity at the appropriate stages of life.1,2<\/sup><\/p>\n

However, protocols used in practice generally assume owner compliance with the recommended, ideal vaccination schedule. In reality, clientele don’t always, or aren’t able to, adhere to the “ideal.”<\/p>\n

\n

Editor\u2019s Note:<\/strong> This article was originally published in November\/December 2012. Please use this content for reference or educational purposes, but note that it is not being actively vetted after publication. For the most recent peer-reviewed content, see our issue archive<\/a>.<\/p>\n

\n

This article addresses options for immunizing dogs and cats significantly overdue for scheduled vaccine appointments. Remember, however, that recommendations outlined are based largely on expert opinion; published scientific studies on revaccination requirements for overdue patients are limited.<\/p>\n

In addition, a multitude of intrinsic (eg, age, genetics, maternally derived antibody) and extrinsic (eg, vaccine type, number of previous vaccine doses, time since last dose was administered, risk for exposure) factors impact an individual patient’s immunity and need for additional vaccine doses.<\/p>\n

Therefore, it is ultimately the decision of the individual clinician to determine what vaccines and how many doses should be recommended.<\/p>\n

Conventional Recommendations<\/span><\/h2>\n

Core Vaccines<\/span><\/h3>\n

Core vaccines\u2014those that should be administered to all dogs and cats\u2014are listed in Table 1<\/strong>.<\/p>\n

Initial Vaccination
\n<\/em><\/strong>Recommendations for initial vaccination of young dogs and cats generally include:<\/p>\n

    \n
  • Core vaccines except<\/em> rabies:<\/strong> 3 doses between 6 and 16 weeks of age<\/li>\n
  • Rabies vaccine<\/strong>: Single dose at no less than 12 weeks of age3<\/sup><\/li>\n
  • Vaccination intervals<\/strong>:\n
      \n
    • Minimum<\/em> recommended interval (dogs and cats) between any 2 vaccine doses is 2 weeks.1<\/sup><\/li>\n
    • Maximum<\/em> recommended interval (dogs) is 6 weeks.1<\/sup><\/li>\n
    • Current feline vaccination guidelines recommend 3- to 4-week interval between doses during initial vaccination series for kittens.2<\/sup><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      The author’s opinion is that a maximum 6-week interval between doses can be applied to both dogs and cats without jeopardizing immunologic outcome. Discussions with veterinarians who follow published vaccination guidelines indicate that many practices recommend administering core vaccines at 2, 3, and 4 months of age in both dogs and cats.<\/p>\n

      Revaccination<\/em><\/strong>
      \nRevaccination (booster) with core vaccines, including rabies, is recommended for all dogs and cats 1 year following completion of initial (juvenile) series. Revaccination is generally recommended at 3-year intervals thereafter.<\/p>\n

      Although all states currently recognize the 3-year rabies vaccines, local (city\/county) requirements may mandate annual revaccination against rabies for dogs and cats.<\/p>\n

      With the exception of rabies<\/em>, the decision to revaccinate a dog or cat annually versus triennially is left to the discretion of the clinician.<\/p>\n

      Noncore Vaccines<\/span><\/h3>\n

      Noncore\u2014optional\u2014vaccines are listed in Table 1.<\/strong><\/p>\n\n\n\n
      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      TABLE 1. Core and Noncore Vaccines for Dogs and Cats
      \n(Organized Alphabetically)<\/td>\n<\/tr>\n
      CANINE CORE VACCINES<\/td>\nFELINE CORE VACCINES<\/td>\n<\/tr>\n
      Canine adenovirus<\/strong>\u00a0(CAV-2)<\/td>\nFeline calicivirus<\/strong>\u00a0(FCV)<\/td>\n<\/tr>\n
      Canine distemper virus<\/strong>\u00a0(CDV)<\/td>\nFeline herpesvirus-1<\/strong>\u00a0(FHV-1)<\/td>\n<\/tr>\n
      Canine parainfluenza virus<\/strong>\u00a0(CPiV)\u00a0Frequently included as core vaccine in U.S. and Canadian practices<\/em><\/td>\nFeline leukemia virus<\/strong>\u00a0(FeLV)
      \nRecommended core vaccine for all kittens<\/em><\/td>\n<\/tr>\n
      Canine parvovirus-2<\/strong>\u00a0(CVP-2)<\/td>\nFeline parvovirus<\/strong>\u00a0(FPV or panleukopenia)<\/td>\n<\/tr>\n
      Rabies<\/strong>\u00a0vaccine is recommended as core for all dogs and cats.<\/td>\n<\/tr>\n
      CANINE NONCORE VACCINES<\/td>\nFELINE NONCORE VACCINES<\/td>\n<\/tr>\n
      Bordetella bronchiseptica<\/strong>
      \nIntranasal, parenteral, or oral<\/em><\/td>\n      		Bordetella bronchiseptica<\/strong>
      \nIntranasal only<\/em><\/td>\n<\/tr>\n
      Canine influenza virus<\/strong>\u00a0(CIV)<\/td>\nChlamydophila felis<\/strong><\/em><\/td>\n<\/tr>\n
      Crotalus atrox<\/em><\/strong>
      \nWestern diamondback
      \nrattlesnake<\/em><\/td>\n      		Feline immunodeficiency virus<\/strong>(FIV)<\/td>\n<\/tr>\n
      Leptospirosis<\/strong><\/td>\nFeline leukemia virus<\/strong>\u00a0(FeLV)
      \nNoncore for adult cats<\/em><\/td>\n<\/tr>\n
      Lyme borreliosis<\/strong><\/td>\nVirulent systemic feline calicivirus<\/strong><\/td>\n<\/tr>\n
      Parainfluenza virus<\/strong>
      \nIntranasal or parenteral<\/em><\/td>\n      		<\/td>\n<\/tr>\n
      Notes
      \n\u2022 Vaccines listed are licensed by the USDA and may not be available in all countries.
      \n\u2022 Canine and feline (FIP) coronovirus vaccines, although licensed products, are not recommended.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Initial Vaccination<\/em><\/strong>
      \nThe number of initial doses required may vary according to manufacturer recommendations and vaccine type\u2014recombinant<\/strong>\u00a0versus<\/em>\u00a0attenuated (live)<\/strong> versus<\/em> inactivated (killed)<\/strong>.<\/p>\n

        \n
      • Parenterally Administered Vaccines<\/strong>: Administer at least 2 doses, 2 to 6 weeks apart, regardless of patient’s age at time of initial vaccination; this is particularly important when administering inactivated vaccines.<\/li>\n
      • Mucosally (Intranasal or Oral) Administered Vaccines<\/strong>: These vaccines contain attenuated bacteria or virus; because the immunizing organism is live, a single dose is expected to immunize.\n
          \n
        • However, discussions with veterinarians indicate that many practices currently recommend 2 initial doses of intranasal vaccines.<\/li>\n
        • There are no contraindications to recommending 2 initial doses.<\/li>\n
        • Maternal antibodies do not interfere with vaccines administered mucosally.<\/li>\n<\/ul>\n<\/li>\n
        • FeLV Vaccines<\/strong>: Whether recombinant or inactivated, 2 initial doses are required to immunize.<\/li>\n<\/ul>\n

          Revaccination<\/em><\/strong>
          \nAssuming a patient has received the initial 2 doses of a noncore vaccine, a single booster dose is recommended annually for adult dogs or cats with reasonable risk for exposure to the virulent bacteria or virus.<\/p>\n

            \n
          • There are no published 3-year recommendations for noncore vaccines.<\/li>\n
          • Some authors recommend a 2-year interval for FeLV revaccination in adult cats, regardless of product used.<\/li>\n<\/ul>\n

            Overdue-For-Vaccination Recommendations<\/h2>\n

            In the event a pet owner does not, or is not able to, adhere to the conventional vaccination schedules outlined, the following recommendations provide reasonable, alternative schedules that offer the most appropriate vaccines at the most appropriate intervals.<\/p>\n

            Overdue During Initial Vaccination Series<\/span><\/h3>\n

            For the juvenile (< 16 weeks of age) dog and cat, the initial<\/em> vaccination series with core vaccines is critical.<\/strong><\/p>\n

            During this series, a dog or cat can be considered overdue for vaccination if the patient is not returned within 6 weeks following administration of the previous dose. However, there are no published studies defining the specific intervals between initial doses of vaccine required to assure a protective immune response.<\/p>\n

            It is reasonable to recommend an alternative vaccination schedule for a dog or cat determined to be overdue. Deciding which vaccine should be administered and when is based on 2 factors:<\/p>\n

              \n
            1. Elapsed time<\/strong> since the previous dose<\/li>\n
            2. Type of vaccine<\/strong> (recombinant, attenuated, or inactivated) being recommended.<\/li>\n<\/ol>\n

              Attenuated Vaccines + Recombinant CDV Vaccine<\/em><\/strong>
              \nIf protocol involves administration of an attenuated vaccine (or the recombinant CDV vaccine), a single dose is expected to immunize, if administered in the absence of maternally derived antibody (MDA).<\/p>\n

              The challenge is determining when MDA levels no longer interfere with immunization in the individual patient. In most dogs and cats, MDA is expected to decline to noninterfering levels by 16 weeks of age. Common scenarios include:<\/p>\n

                \n
              • A puppy receives a single (combined) dose of core vaccines at 7 weeks of age; however, the puppy isn’t returned for the second dose until 9 weeks later, at 16 weeks of age.\n
                  \n
                • Administration of a single dose<\/strong> of a recombinant or attenuated vaccine is expected to immunize.<\/li>\n
                • Alternatively, administration of 2 additional doses, 2 to 6 weeks apart<\/strong>, rather than 1, would also be considered appropriate.<\/li>\n<\/ul>\n<\/li>\n
                • A dog or cat older than 16 weeks of age is presented to the practice for the first time.\n
                    \n
                  • Surveys of veterinarians practicing in the U.S. and Canada indicate that 2 doses, 2 to 6 weeks apart, are conventionally recommended.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                    Inactivated Vaccines + Recombinant Noncore Vaccines<\/em><\/strong>
                    \nWhen administering inactivated vaccines or recombinant noncore vaccines (eg, leptospirosis, Lyme borreliosis, FeLV), 2 initial doses are required to induce protective immunity, regardless of patient’s age at time the first dose is administered.<\/p>\n

                      \n
                    • The primary immune response<\/strong> following administration of the first dose of an inactivated vaccine (or recombinant FeLV or Lyme borreliosis vaccine) is relatively weak and short-lived (sometimes referred to as priming<\/em>).\n
                        \n
                      • A patient that receives only a single dose of inactivated vaccine is unlikely to develop a sustained protective immune response.<\/li>\n
                      • Rabies vaccination is the obvious exception.<\/li>\n<\/ul>\n<\/li>\n
                      • The secondary immune response<\/strong> following administration of the second (immunizing<\/em>) vaccine dose is relatively robust and has rapid onset (anamnestic).\n
                          \n
                        • This protective immune response is sustained for months or years.3-5<\/sup><\/li>\n
                        • Protective immunity is expected to develop by 7 days following administration of the second dose of an inactivated vaccine.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                          The interval between the first (priming) and second (immunizing) doses of an inactivated vaccine is important: If the interval between the initial 2 doses is inordinately prolonged, the anamnestic response to the second dose may be significantly diminished, leaving the patient susceptible if exposed.<\/p>\n

                          During the initial series, using a noncore vaccine, any patient with a vaccination interval that exceeds 6 weeks between doses should receive 2 additional doses, 2 to 6 weeks apart<\/strong>. Common examples include:<\/p>\n

                            \n
                          • A kitten receiving the first dose of an FeLV vaccine at 10 weeks of age that returns 2 months later for the second dose.<\/li>\n
                          • A dog presenting for its first dose of Lyme borreliosis vaccine (inactivated or recombinant) at 3 years of age that returns 3 months later for the second dose.<\/li>\n<\/ul>\n

                            See Tables 2 and 3<\/strong> for a summary of recommendations for puppies and kittens overdue for vaccination during initial (juvenile) series.<\/p>\n\n\n\n
                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                            TABLE 2. Vaccination Recommendations: Puppies Overdue During Initial Vaccination Series<\/td>\n<\/tr>\n
                            Vaccine Type<\/td>\nOverdue<\/td>\nRecommendation<\/td>\n<\/tr>\n
                            Canine adenovirus-2<\/strong>(attenuated)<\/td>\nOverdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer single dose if 16 weeks of age or older.
                            \n\u2022 Administer 2 doses, 2\u20136 weeks apart, if less than 16 weeks of age.
                            \n\u2022 Option: Administer 2 doses, 2\u20136 weeks apart, to any overdue patient.<\/td>\n<\/tr>\n
                            Canine distemper\u00a0<\/strong>(attenuated)<\/td>\n<\/tr>\n
                            rCanine distemper\u00a0<\/strong>(recombinant)<\/td>\n<\/tr>\n
                            Canine parainfluenza virus<\/strong>(attenuated, parenteral)<\/td>\n<\/tr>\n
                            Canine parvovirus-2<\/strong>(attenuated)<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong>\u00a0<\/em>+ parainfluenza<\/strong>
                            \n(<\/em>attenuated, intranasal)<\/em><\/td>\n                            		Not applicable: Single dose expected to immunize<\/td>\n<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong><\/em>
                            \n(<\/em>attenuated, oral)<\/em><\/td>\n                            		Not applicable: Single dose expected to immunize<\/td>\n<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong><\/em>
                            \n(<\/em>inactivated, parenteral)<\/em><\/td>\n                            		Overdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart, to overdue patients.<\/td>\n<\/tr>\n
                            All other noncore vaccines<\/strong>
                            \n(inactivated; also recombinant Lyme vaccine)<\/td>\n                            		Overdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart, to overdue patients.<\/td>\n<\/tr>\n
                            Rabies<\/strong>
                            \n(inactivated)<\/td>\n                            		Overdue if more than 12 months have lapsed since initial dose.<\/td>\n\u2022 Administer single dose of a labeled 1- or 3-year vaccine.
                            \n\u2022 Note<\/em>: Generally, patient considered “vaccinated” for labeled duration on product; local statutes may vary from this recommendation.<\/td>\n<\/tr>\n
                            Note: All vaccines administered parentally unless otherwise noted.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                            \n

                             <\/p>\n\n\n\n
                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                            TABLE 3. Vaccination Recommendations: Kittens Overdue During Initial Vaccination Series<\/td>\n<\/tr>\n
                            Vaccine Type<\/td>\nOverdue<\/td>\nRecommendation<\/td>\n<\/tr>\n
                            Feline calicivirus<\/strong>(attenuated)<\/td>\nOverdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer single dose if 16 weeks of age or older.
                            \n\u2022 Administer 2 doses, 2\u20136 weeks apart, if less than 16 weeks of age.
                            \n\u2022 Option: Administer 2 doses, 2\u20136 weeks apart, to any overdue patient.<\/td>\n<\/tr>\n
                            Feline herpesvirus-2<\/strong>(attenuated)<\/td>\n<\/tr>\n
                            Feline parvovirus\u00a0<\/strong>(attenuated)
                            \n(parenteral or intranasal<\/em>)<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong>
                            \n(<\/em>attenuated, intranasal)<\/em><\/td>\n                            		Not applicable: Single dose expected to immunize<\/td>\n<\/td>\n<\/tr>\n
                            Chlamydophila felis<\/strong><\/em>(attenuated or inactivated)<\/td>\nOverdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer single dose if 16 weeks of age or older.
                            \n\u2022 Option: Administer 2 doses, 2\u20136 weeks apart, to any overdue patient.<\/td>\n<\/tr>\n
                            Feline leukemia\u00a0<\/strong>
                            \n(recombinant or inactivated)<\/td>\n                            		Overdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart, to overdue patients.<\/td>\n<\/tr>\n
                            Feline immunodeficiency virus<\/strong>\u00a0(inactivated)<\/td>\nOverdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart, to overdue patients.
                            \n\u2022 Note: Manufacturer recommends 3 initial doses.<\/td>\n<\/tr>\n
                            Virulent systemic feline calicivirus<\/strong>\u00a0(inactivated)<\/td>\nOverdue if more than 6 weeks have lapsed since previous dose in series.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart, to overdue patients.<\/td>\n<\/tr>\n
                            Rabies<\/strong>\u00a0(recombinant or inactivated)<\/td>\nOverdue if more than 12 months have lapsed since previous dose in series.<\/td>\n\u2022 Administer single dose of a labeled 1- or 3-year vaccine.
                            \n\u2022 Note: Generally, patient considered “vaccinated” for labeled duration on product; local statutes may vary from this recommendation.<\/td>\n<\/tr>\n
                            Notes:
                            \n\u2022 Inactivated feline parvovirus, herpesvirus-1, and calicivirus vaccines are available but not generally recommended for use in feline vaccination protocols. If administering inactivated vaccine, kittens overdue during initial series should receive 2 doses, 2 to 6 weeks apart.
                            \n\u2022 All vaccines administered parentally unless otherwise noted.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                            Overdue for Adult Revaccination<\/span><\/h2>\n

                            When considering an alternative vaccination schedule for adult dogs and cats overdue for a vaccine dose, the same principles for a patient overdue during the initial series apply: the elapsed time since the previous vaccine and type of vaccine (recombinant, attenuated, or inactivated) must be considered.<\/p>\n

                            Core Vaccines<\/h3>\n

                            Dogs or cats can be considered overdue for revaccination with core vaccines if the last dose was administered over 3 years ago. With the exception of the 1-year rabies vaccine,<\/em> this recommendation applies to all core vaccines regardless of manufacturer.<\/p>\n

                            Because most core vaccines currently recommended are attenuated (or recombinant CDV), a single dose of a combination vaccine is expected to induce a protective immune response<\/strong> in a patient regardless of the number of years since the previous dose.<\/p>\n

                            Noncore Vaccines<\/h3>\n

                            Recommendations for adult dogs overdue for an inactivated noncore vaccine vary somewhat depending on the antigen. Killed bacterial vaccines (bacterins), for example, tend to have a shorter duration of immunity and shorter immune memory compared to killed viral vaccines.<\/p>\n

                            Bacterial vaccines<\/strong>. Generally, an adult dog or cat is considered overdue for an inactivated noncore bacterin (eg, leptospirosis, Chlamydophila felis<\/em>) if the last dose was administered 2 or more years<\/strong> previously. These patients should receive 2 doses, 2 to 6 weeks apart<\/strong>, to reinstate protective immunity.<\/p>\n

                            Viral vaccines<\/strong>. Because the immunizing antigen is an inactivated virus as opposed to bacteria, a single dose of vaccine is expected to boost immunity in a patient that has received a dose within the past 3 years (although there are no published studies to confirm this). However, dogs and cats overdue for noncore viral vaccines by 2 or more years<\/strong> should receive 2 doses, 2 to 6 weeks apart. <\/strong>See Tables 4 and 5<\/strong> for a summary of recommendations for adult dogs and cats that are considered overdue for revaccination.<\/p>\n\n\n\n
                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                            TABLE 4. Vaccination Recommendations: Adult Dogs Overdue for Scheduled Revaccination<\/td>\n<\/tr>\n
                            Vaccine Type<\/td>\nOverdue<\/td>\nRecommendation<\/td>\n<\/tr>\n
                            Canine adenovirus-2<\/strong>(attenuated)<\/td>\nOverdue if more than 3 years since previous dose.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate every 3 years thereafter.<\/td>\n<\/tr>\n
                            Canine distemper\u00a0<\/strong>(attenuated)<\/td>\n<\/tr>\n
                            rCanine distemper\u00a0<\/strong>(recombinant)<\/td>\n<\/tr>\n
                            Canine parainfluenza virus<\/strong>(attenuated, parenteral)<\/td>\n<\/tr>\n
                            Canine parvovirus-2<\/strong>(attenuated)<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong><\/em>+ parainfluenza<\/strong>
                            \n(<\/em>attenuated, intranasal)<\/em><\/td>\n                            		Overdue if more than 1 year since previous dose.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong>
                            \n(<\/em>attenuated, oral\u00a0<\/em>orintranasal)<\/em><\/td>\n                            		Overdue if more than 1 year since previous dose.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong><\/em>
                            \n(<\/em>inactivated, parenteral)<\/em><\/td>\n                            		Overdue if more than 2 years since previous dose.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart.
                            \n\u2022 Option: Administer single dose of intranasal or oral vaccine.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            All other noncore vaccines<\/strong>
                            \n(inactivated; also recombinant Lyme vaccine)<\/td>\n                            		Overdue if more than 2 years since previous dose.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart.
                            \n\u2022 Revaccinate annually or as recommended by manufacturer.<\/td>\n<\/tr>\n
                            Rabies<\/strong>
                            \n(inactivated)<\/td>\n                            		Overdue if more than 3 years since administration of a labeled 3-year vaccine; or, if more than 12 months since administration of a labeled 1-year vaccine.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate every 1 or 3 years thereafter if using labeled 1- or 3-year vaccine, respectively.
                            \n\u2022 State, local, or provincial statutes may dictate required vaccination schedule.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                             <\/p>\n\n\n\n
                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n
                            TABLE 5. Vaccination Recommendations: Adult Cats Overdue for Scheduled Revaccination<\/td>\n<\/tr>\n
                            Vaccine Type<\/td>\nOverdue<\/td>\nRecommendation<\/td>\n<\/tr>\n
                            Feline calicivirus<\/strong>(attenuated)<\/td>\nOverdue if more than 3 years since previous dose.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate every 3 years thereafter.<\/td>\n<\/tr>\n
                            Feline herpesvirus-2<\/strong>(attenuated)<\/td>\n<\/tr>\n
                            Feline parvovirus\u00a0<\/strong>(attenuated)
                            \n(parenteral or intranasal<\/em>)<\/td>\n<\/tr>\n
                            B bronchiseptica<\/strong>
                            \n(<\/em>attenuated, intranasal)<\/em><\/td>\n                            		Overdue if more than 1 year since previous dose.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            Chlamydophila felis<\/strong><\/em>(attenuated or inactivated)<\/td>\nOverdue if more than 2 years since previous dose.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            Feline leukemia\u00a0<\/strong>
                            \n(recombinant or inactivated)<\/td>\n                            		Overdue if more than 2 years since previous dose.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart.
                            \n\u2022 Revaccinate annually or every 2 years thereafter.<\/td>\n<\/tr>\n
                            Feline immunodeficiency virus<\/strong>\u00a0(inactivated)<\/td>\nOverdue if more than 2 years since previous dose.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            Virulent systemic feline calicivirus<\/strong>\u00a0(inactivated)<\/td>\nOverdue if more than 2 years since previous dose.<\/td>\n\u2022 Administer 2 doses, 2\u20136 weeks apart.
                            \n\u2022 Revaccinate annually.<\/td>\n<\/tr>\n
                            Rabies<\/strong>\u00a0(recombinant or inactivated)<\/td>\nOverdue if more than 3 years since administration of a labeled 3-year vaccine; or, if more than 12 months since administration of a labeled 1-year vaccine.<\/td>\n\u2022 Administer single dose.
                            \n\u2022 Revaccinate every 1 or 3 years thereafter if using labeled 1- or 3-year vaccine, respectively.
                            \n\u2022 State, local, or provincial statutes may dictate required vaccination schedule.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                            Overdue for Rabies Vaccination<\/span><\/h3>\n

                            Although rabies vaccination of dogs or cats is not required by all states or provinces, current vaccination guidelines recommend rabies vaccine as core for dogs and cats. This recommendation is based on the facts that:<\/p>\n

                              \n
                            • Rabies is a potentially fatal zoonotic disease.<\/li>\n
                            • If an unvaccinated (or overdue for vaccination) dog or cat is exposed to a rabid animal or bites a human, the animal may be subjected to extended quarantine periods and, in some cases, euthanasia.7<\/sup><\/li>\n<\/ul>\n

                              Veterinarians seeking legal guidance from a state or province on revaccination of dogs and cats overdue for rabies inoculation may have difficulty finding specific recommendations. When guidance is provided, recommendations may vary from state to state, as well as from city to city within a state. Veterinarians are encouraged to review applicable rabies vaccination laws, if available, before recommending alternative schedules for overdue patients.<\/p>\n

                              In locations where specific guidance on vaccination of overdue dogs and cats is not published, it is appropriate to contact local or state authorities responsible for providing oversight on animal rabies prior to implementing a novel rabies vaccination schedule. For example, the Pennsylvania Department of Agriculture employs veterinarians within the Bureau of Animal Health who can review a proposed vaccination schedule and circumstances surrounding the case.<\/p>\n

                              It should be noted that the following recommendations are applicable only in those locations that do not provide specific guidance to veterinarians on revaccination of dogs and cats overdue for rabies inoculation.\u00a0<\/em><\/p>\n

                              Initial Vaccination<\/em><\/strong><\/p>\n

                                \n
                              • The initial<\/em> dose of rabies vaccine can be administered to dogs and cats as early as 12 weeks of age.<\/li>\n
                              • Most states allow veterinarian discretion in the use of a rabies vaccine labeled as a 1-year or 3-year product when administering the initial dose.<\/li>\n
                              • In most states, a dog\/cat is not considered immunized until 28 days from the date of initial inoculation.<\/li>\n
                              • The maximum duration of immunity following initial<\/em> inoculation of rabies vaccine is 12 months, whether or not a 3-year rabies vaccine was administered.<\/li>\n
                              • If the animal is not revaccinated within 12 months following the initial dose, it is considered unvaccinated and, therefore, overdue, even if the initial dose was a labeled 3-year vaccine.<\/em><\/li>\n<\/ul>\n

                                Revaccination<\/em><\/strong><\/p>\n

                                  \n
                                • Labeled 3-Year Vaccines<\/strong>: Adult dogs and cats that have previously received 2 doses of rabies vaccine within a 12-month period<\/strong> (initial<\/em> dose and first booster<\/em> dose with labeled 3-year vaccine) are considered unvaccinated<\/em> (overdue), if not revaccinated within 3 years following the booster dose.<\/li>\n
                                • Labeled 1-Year Vaccines:<\/strong> If the booster dose administered was a labeled 1-year vaccine, revaccination is required within 12 months for the patient to be considered vaccinated and current.<\/li>\n<\/ul>\n

                                  Generally, the anamnestic response in a previously vaccinated animal is considered to be rapid and protective. A dog or cat is immediately considered vaccinated (protected) following administration of a booster<\/em> dose.3,8<\/sup><\/p>\n

                                  Vaccination for Overdue Pets<\/em><\/strong>
                                  \nRabies revaccination for a pet that is overdue for a scheduled inoculation raises the question:<\/p>\n

                                    \n
                                  • Administer single dose<\/strong> of a labeled 3-year rabies vaccine or<\/li>\n
                                  • Administer 2 doses<\/strong> at a 12-month interval (ie, repeat the initial 2-dose series)?<\/li>\n<\/ul>\n

                                    Sustained\u00a0immune memory<\/em>\u00a0in a pet that has previously been vaccinated against rabies is a significant factor in making recommendations for revaccination of overdue dogs and cats. The ability of a single dose to rapidly induce a significant (protective) anamnestic response justifies the recommendation to administer a single dose to an overdue patient<\/strong>.<\/p>\n

                                    However, there are no studies that stipulate how many years a dog or cat may be overdue for a rabies inoculation and still receive immunologic protection if given a single dose. For example:<\/p>\n

                                      \n
                                    • A previously vaccinated pet dog residing in Lancaster County, southeastern Pennsylvania, is 5 years overdue for rabies inoculation.<\/li>\n
                                    • Considering the endemicity of rabies in Lancaster County, the dog’s risk for exposure to rabid wildlife, and the time since its last rabies inoculation:\n
                                        \n
                                      • It would not be unreasonable to recommend repeating a 2-dose series<\/strong> in this patient.<\/li>\n
                                      • It would even be appropriate to recommend a 4-week interval between the 2 doses<\/strong> (rather than 1-year).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                                        Preventive medicine is paramount to companion animal health.<\/p>\n","protected":false},"author":187,"featured_media":11383,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"iawp_total_views":37439,"footnotes":""},"categories":[383],"tags":[13],"class_list":["post-1406","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-november-december-2012","tag-peer-reviewed","column-features","clinical_topics-preventive-medicine"],"acf":{"hide_sidebar":false,"hide_sidebar_ad":false,"hide_all_ads":false},"yoast_head":"\nDogs & Cats Overdue for Vaccination Recommendations for Updating Immunizations<\/title>\n<meta name=\"description\" content=\"Preventive medicine is paramount to companion animal health. 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