Often, things happen in clusters that have no explanation except a chance occurrence. People like to blame it on radio waves or something. It's a natural human tendency to want to connect the dots, but most of the time there are not connections.

You don't want to let bacteria set up shop and invade.

The stories are very scary and very unsettling.

To my knowledge, the flesh-eating kinds of infections are not on the increase. People want to find a connection, but often, even when you look there's no connection.