The natural immunities from a mother's milk are only thought to last for the first 20 weeks of life.
Kittens and puppies inherit
a natural immunity from their mother that protects them at birth, but it begins wearing off at six weeks of age.
Puppies and kittens inherit
a natural immunity from their mother that protects them from birth until about 6 weeks of age.
Not exact matches
Natural immunity is received by the baby
from their
mother against the diseases.
Litters
from ferals can suffer
from fleas and other parasites and do not have the
natural immunity of vaccinated
mother cats.
In fact, if the lactating
mother does not have
immunity (either
from previous vaccination or
natural exposure), a vaccine may actually be lifesaving in the event of disease exposure.
Natural immunity obtained
from the milk of their
mothers persist in most puppies until 12 to 16 weeks of age.