What is the Difference Between Similar But Different Things, Terms, and Objects

What is the Difference between Tonsillitis, Strep Throat and Sore Throat

Throat is a very important part of the human body. However,it is porn to many kinds of infections. There could be more than one reason, behind these infections. We commonly hear tonsillitis, strep throat and sore throat and people often used them interchangeably.