Hatsujou Virus summary:

Tatsumi, a lab technician, is severely haphephobic. After accidentally contracting an experimental virus, however, he finds himself craving touch... Particularly the touch of the man responsible for the incident, whom he's quarantined inside the laboratory with. From a relationship that started merely for the sake of sexual gratification during a moment of insanity and uncertainty, can love truly blossom?(Edited from a synopsis by Dark Black Fansub)