For this reason antitoxin, anti-serum containing antibodies, is injected to provide passive immunity.
2.
Passive immunity is effective, but ephemeral ( lasting a short amount of time ).
3.
In passive immunity the desired antibody titers are achieved by injecting antibodies directly into an animal.
4.
The antibodies in colostrum provide passive immunity, while growth factors stimulate the development of the gut.
5.
Passive immunity may protect against challenge with homologous IBDV, as does previous infection with homologous avirulent strains.
6.
Perhaps most importantly, it conveys passive immunity to the calf before its immune system is fully developed.
7.
A disadvantage to passive immunity is that producing antibodies in a laboratory is expensive and difficult to do.
8.
:Did you read passive immunity?
9.
Maternal IgG antibodies cross the placenta, giving the fetus passive immunity against those diseases for which the mother has antibodies.
10.
Maternal passive immunity offers immediate protection, though protection mediated by maternal IgG typically only lasting four to six months after birth.
