It is a fact that rats can make you sick. Here are some of the most common rat-borne diseases and the risks they pose to humans.
Rats have a 'laugh centre' in their brains that responds to tickling
A Tale of 2 Rodents Scientific American
Dangers of Having Rats & Mice in Your Home - Plunkett's Pest Control
Is Dead Rat Smell Harmful To Health? - Project Multi Pest
Plague: Types, History, Causes & Prevention
In Defense of the Rat
The Long, Strange Life of the World's Oldest Naked Mole Rat
Can Rat Droppings Make You Sick?
Rats can't barf—here's why
What Could Really Happen If You Eat Rodent-Infected Food?
Fancy rat - Wikipedia
Diseases Carried by Rats Palmetto Wild Life Extractors
Arthurwears: We bought a rat infested house
The incredible naked mole rat can survive with hardly any oxygen
Fun Facts About Rats You May Not Know – Lafeber Co. – Small Mammals