Shelter vaccine protocols differ from protocols used in private practice because shelter animals have an elevated risk of infectious disease. Shelter animals have increased exposure to disease, heightened stress, and high population turnover rates contributing to higher risk.

Vaccinations are a key preventative measure used to minimise the incidence and transmission of highly contagious and often fatal diseases. The vaccination of animals helps protect the individual animal coming into the shelter as well as the shelters existing population.

SPCA supports vaccination of shelter animals in accordance with WSAVA guidelines

World Small Animal Veterinary Association (WSAVA) recommendations for shelter animals include an earlier and longer age range for juvenile animals, a shorter time span between vaccines, and different core and noncore vaccinations.

It is also recommended that shelter animal core vaccinations are Modified Live Vaccines (MLVs). MLVs provide faster onset of immunity and break through Maternally Derived Antibodies (MDA) sooner than inactivated vaccines.

SPCA supports vaccination of juvenile animals entering the shelter from one month of age

Juvenile animals are more susceptible to disease. Where possible, these animals should be directly transferred to and housed in foster care. While held in the shelter, juvenile animals should begin primary vaccination of at one month of age and repeat every two to three weeks until five months.

SPCA supports vaccination of pregnant animals at entry to shelters

Pregnant animals are more susceptible to disease. Where possible, these animals should be directly transferred to and housed in foster care. While MLVs are not advised for pregnant pets that live in home environments, pregnant animals entering shelters should be vaccinated because the rapid protection provided outweighs the risk for harm to foetuses or to the animal.