There is no mention of a virus or a disease, but that has not stopped the conspiracy theories from popping up.
For those who fancy polishing up their Italian they can.
For instance, there are Lambda and Mu variants, we just do not really hear about them, as they are barely prevalent.
The combination of apparently unlimited free time and an infinite number of people desperately seeking new information is an irresistible combo for many hoaxsters, who delight in leading large groups of people down any garden paths their imaginations can come up with.
A synopsis describes the plot as: "An alien takes over the body of an Earthman in order to learn about the planet so his race can take it over.
But if even that isn't enough to satisfy you, AFP tracked down the creator of the original poster, who didn't intend it to be a hoax at all: "It was just a joke based on the fact that omicron variant sounded like a 70s sci-fi movie.