Poliomyelitis, also known as polio, is an infectious disease caused by the poliovirus. It spreads among people typically through contact...

We are bordering the turn of the 18th century. It is 1796, and smallpox continues its rampage. Even if smallpox did not kill you, the...

“Grandma already got the vaccine… So why does she still have to wear the mask?” asked a child to their mother. “She’s only got one dose...