$AIDS$ day is
$1\; May$
$1\; December$
$1\; June$
$AIDS\; day\; is$ $1^{\text {st }}$ $December$
Virus-infected cells secrete proteins called
‘Vaccination' was invented by
Antibodies in our body are complex
Out of the following diseases which are caused due to bacterial infection?
$a.$ Typhoid
$b.$ Elephantiasis
$c.$ Cholera
$d.$ Tuberculosis
Antivenom against snake poison contains