The percentage of the population suffering from mild mental disorders is: (in $\%$)

Each antibody molecule has $A$ polypeptide chains,$B$ small chains called $C$ chains,and $D$ longer chains called $E$ chains. The antibody,therefore,is represented as $F$. Here $A$ to $F$ refer to:

In vertebrates,a small protein is produced by cells in response to viral infection,which inhibits further viral replication. Identify this protein.

$A$ large bean-shaped organ that contains lymphocytes and phagocytes is:

Define and explain the terms: Non-infectious disease and Infectious disease.

The first dose of $BCG$ vaccine is given at the time of: