Measles is caused by a ssRNA virus belonging to the Paramyxoviridae family, genus Morbillivirus. It has an incubation period of approximately 10–12 days, and clinical disease begins with symptoms of ...

The roseola rash appears as small pink spots that are usually flat. Like with fifth disease, the rash may be harder to see on darker skin. It may start on the chest and stomach before spreading to the ...