Zoology - Human Health and Diseases Question with Solution | TestHub

When ready-made antibodies are directly given to protect the body against foreign agents, it is called passive immunity. The yellowish fluid colostrum secreted by the mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. The foetus also receives some antibodies from their mother, through the placenta during pregnancy. In the case of snake bites, the injection which is given to the patients contains preformed antibodies against the snake venom.