Humoral immunity is due to

Out of the following diseases which are caused due to bacterial infection?

$a.$ Typhoid
$b.$ Elephantiasis
$c.$ Cholera
$d.$ Tuberculosis

Aloe vera cures cough and cold by

The part of life cycle of malarial parasite Plasmodium vivax, that is passed in female Anopheles is

First triple antigen vaccination is given to the child at the age of

A cell-coded protein that is formed in response to infection with most animal viruses is called