H1N1
The H1N1 epidemic in 2009 wasn’t the first one. In fact, H1N1 first popped up in 1918 but it was a lot more deadly back then. A scientist attempted to recreate this first and deadlier strain by altering the recent one, and succeeded. It’s stored in a lab for now, but considering how bad the 1918 epidemic was, I’m sure we all want it to stay there for as long as possible.

Bird Flu
Dutch scientists decided to make bird flu (which isn’t easily transmitted to humans) easier to transmit to humans. Considering how lethal bird flu is, this is bad news. The virus mutated on its own and became airborne, where natural bird flu isn’t an airborne virus. And as if that wasn’t risky enough, the scientists wanted to publish the process to create their new deadly virus that could potentially wipe out half the planet.
