Who discovered interferons?

What is the full form of $WHO$?

$DPT$ vaccine doses are administered at specific intervals after birth. Identify the correct sequence for the $1^{st}$, $2^{nd}$, and $3^{rd}$ doses of $DPT$ from the following list:
$I$. $6 \; \text{weeks}$ after birth
$II$. $10 \; \text{weeks}$ after birth
$III$. $14 \; \text{weeks}$ after birth
$IV$. $24 \; \text{weeks}$ after birth
$V$. $29 \; \text{weeks}$ after birth

Diseases present in an offspring at the time of birth are called .......?

What is the condition of some parts of the body that interferes with their normal functions called?

How many amino acids are present in the structure of interferon?