Kennel/cattery vacc protocols (Stone) Flashcards
Max health and production
- minimize stress (good and bad)
- ideal housing
- good nutrition
- parasite control
- disease prevention
Handle animals in order of….
- age and immune status
- puppies, preggos, young adults, adults, sick animals
Immunoprophylaxis
- enhanceet of a specific immune response in an attempt to protect an animal from disease
- vaccination
- passive transfer
Innate immunity
- exists prior to foreign Ag exposure
- physical barriers, phagocytic cells, natural killer cells
Acquired Immunity
- Develops upon a foregn Ag stimulation
- Humoral Immunity B-cells (antibodies)
- Cell mediated Immunity T-cells
- Secretory IgA
Passive Immunization
- artificial transfer of specific antibodies
- immediate protection
- allergic/immune reactions
- short-lived resistance
- transfer of disease possible
- oral, IM, IP, SQ
Active Immunization
- give an Ag to produce an immune response
- costs less than passive immunization
- takes time to produce immunity
- long lived immunity
- months, years, life
Maternal Antibodies
- Colostral antibodies: 82-98%
- Transplacental Antibodies: 2-18%
- Absorbed in 1st 24-72 hours
offsprings antibody level affected by
- maternal antibody titer
- amount of colostrum received
- parasitism
- environment
critical period
Test question
- Elimination of maternal antibody in the neonate in relation to vaccination
- 6-8
- 14-16 weeks
Modified-live Attenuated
- whole agent
- recombinant vector
Inactivated/non-infectious
- whole agent - killed
- purified subunit
- recombinant protein
Advantages of modified-live vaccines
- replicate in host
- provide more rapid protection
- produce longer-lasting immunity
- lower Ag mass - fewer reactions
- better stimulates CMI
Disadvantages Modified-Live Vaccines
- Reversion to virulence (very rare)
- immunosuppressed
- neonates
- Can cause immune suppression
- all the vet students across the street…lol
Recombinant Vector
- Genetic code for key immunogenic proteins inserted into a non-pathogenic vector
- Pox virus, herpesvirus, bovine papillomavirus, simian virus 40, adenovirus
- PUREVAX (Rabies, FeLV) - Merial (Cats)
- Recombitek Distemper - Merial (Dogs)
Intranasal or Oral
modified live
- Immune response within 3-5 days
- higher levels of IgA
- Readily reverts to varulence
- More post vaccinal signs (IN)
Parenteral
Modified Live Products
- Immune response within 7-10 days
- high levels of IgG
- Does not revert to virulence as readily
- fewer post vaccinl signs
Advantages of inactivated vaccines (whole agent)
- Don’t replicate in host
- no reversion to virulence
- safer in immunosuppressed or neonates
Disadvantages of Inactivated vaccines (whole agent)
- requires more vaccinations
- more allergenic due to higher Ag mass
- requires adjuvant
- shorter duration of immunity (DOI)
- initial protection requires a booster
Purified subunit
(inactivated vaccines)
- Purified antigenic components of the infectious agent
- less allergenic than killed whole agent
- Leukocell 2 - Zoetis (cats)
Recombinant protein
(inactivated vaccines)
- Desired gene clonged into organism, produced in vitro then harvested
- Recombitek Lyme - Merial
Adjuvants
- added to increase duration and amount of immunostimulation
- Types
- aluminum hydroxide
- mycobacteria/endotoxins
- carbopol
- oil
- liposomes
- freund’s complete
Vaccination does not equal
immunization
Categories of vaccine failure
- Host factors
- Vaccine factors
- Human factors
Host factors
- immunodeficiency
- maternal Ab
- Age
- Pregnancy
- Fever/hypothermia
- stress/illness
- incubating disease
- drug therapy
- general debilitation
- malnutrition
- hormonal changes
Vaccine factors
- improper storage/handling
- biological variation
- strain differences
- excessive attenuation
- reversion to virulence
- overwhelming exposure
Human factors
- hospital protocol
- vaccine interference
- 2 week interval
- improper mixing/amount
- exposed at time of vaccination
- improper route of admin
- improper use of disinfectants
- concurrent use of microbials or immunosuppressive drugs
steroids and vaccination
- ok to vaccinate an animal on steroids for inflammation
- not ok to vaccinate an animal on immunosuppressive doses steroids
Vaccination reactions
- local
- mild systematic
- fetal resorption, abortions, birth defects
- immune complex disease
- anaphylaxis
- immune mediated hemolytic anemia (or thrombocytopenia)
- Vaccine induced neoplasia
- contamination of multidose vials
- adventitious agents
- febrile limping syndrome of acats
- vaccine assoc disease of young akitas
- incomplete attenuation causing disease
Core vaccines dogs
- canine distemper virus
- canine parvovirus
- infectious canine hepatitis
- rabies
core vaccines cats
- rabies
- feline panleukopenia
- feline herpes virus
- feline calicivirus
Non-core vaccines dogs
- given based on risk assessment
- canine corona virus
- canine parainfluenza virus
- leptospirosis
- bordetella
- lyme
- influenza
Non-core vaccines cats
- Feline Leukemia (core in kittens)
- FIV
- FIP
- Chlamydophila
- bordetella (zoonotic to peeps too)
Risk assessment
- shelters/breeders
- outdoor enthusiast
- outdoor socialite
- indoor socialite
- indoor elitist
- indoor pampered pet
Canine
- Transmission
- virus shed in body secretions
- primary source of exposure: aerosol
- often young dogs kept in groups
- virus shedding ceases 1-2 weeks post-recovery
- virus labile
- survives hours to days
Canine distemper
CS
- chorioretinitis + keratoconjunctivitis + CNS signs = pretty unique to distemper
- other signs
- respiratory
- GI
- CNS signs: seizures, ataxia, myoclonus
Canine distemper
DX
- Clinical signs/inadequate vaccine history
Canine distemper
Prevention
- MLV most common
- vaccinate on intake to group housing situation
- vaccinate at 6-8 weeks then q 2-4 weeks until 14-16 weeks
- booster in 1 year then q 1-3 years depending on risk