Hello everyone,

I keep thinking of a short story I read, decades ago, about a retelling of the Superman legend. The story is "Alternate Ending" by Frank Adey, part of the collection of short stories, "Superheroes", edited by Michael Parry. In that story, the alien scientist and his wife send their son to Earth, but, along with the child were Kryptonian viruses. As you can guess, the viruses were invulnerable, so they multiplied and killed all life on the planet.