What Is the Measles Virus?
Measles virus is a Paramyxovirus, of the genus Morbillivirus. It is single-stranded RNA virus, and is closely related to the rinderpest and canine distemper viruses. Measles virus is rapidly inactivated by heat, light, acidic pH, ether, and trypsin (an enzyme). It has a short survival time (under 2 hours) in the air, on objects, and on surfaces. The measles virus only infects humans.