Justin Peed is the narrator, and biologist Dan Riskin explains how and why each infectious agent works inside its host.

Out of the 216 cases documented on the show, only 12 of those ended in the victim dying, usually from a disease with an extremely low survival rate.

It features reruns of episodes from Seasons 6-onwards but adds extra onscreen trivia that appears when a condition, infection, or symptom is discussed.

"[2] Anne Louise Bannon of Common Sense Media said that "parents need to know that there is a lot of gross stuff in the series and the show has good educational content except for the tips on how to protect yourself from parasites because the information is vague".

For several years now the scariest show on television has been Animal Planet's 'Monsters Inside Me,' which recreates real cases of bizarre, life-threatening infections.