Wasn't it supposed to be: Anonymous is attacked by varicella-zoster? Please right me if I'm wrong.
Bear in mind that it was posted by an educator (I might not be making a big fuss about it if it was coming from people of other professions). If I'm a parent, I'll be terrified to know that my kids' teacher made a grammar mistake in his/her Facebook status!!! What would you expect from the classroom?! Horrible!!!
Although you might argue that Facebook is a free place to express oneself (no one care about the grammar & stuff), yes, I agree with that. But... But... I'm still bothered if a teacher uses bad English. Really.