Viruses ! Is there any word related to microbiology that conjures up the same fear, the same cache of woe than viruses. The very definition can mean "a harmful or corrupting influence", which is presumably why Miley Cyrus's music is often transmitted via "Viral Videos". People know there is something to fear when they hear of a Virus.
So perhaps it is not mistake that so close to Halloween that the Microbiology Twitter Journal Club is getting together to talk about a new species of GIANT VIRUS.