Published under the pen name Rene Lafayette
Publication date: April 1949
Original publication: Astounding Science Fiction
Genre: Science Fiction
Series: Ole Doc Methuselah
Story description: A spaceship, with an epidemic aboard, is ordered back into space, and ultimately lands on the third habitable planet of Sirius, communicating the “plague” to the local inhabitants. Ole Doc Methuselah saves the ship and its environs from being destroyed, and identifies the “plague” as an ancient—but totally unfamiliar—disease: measles.
Currently available in the book Ole Doc Methuselah.