- Incidence: 40.00 cases per 100,000 person-years
- Peak incidence: 6-15 years
- Sex ratio: 1:1
The child begins to feel better as the rash appears and the rash usually peaks after a week and then fades. The rash is unusual in that for some months afterwards, a warm bath, sunlight, heat or fever will trigger a recurrence of the bright red cheeks and the rash itself.
The child need not be excluded from school as they are no longer infectious by the time the rash occurs.
In adults, the virus may cause acute arthritis.
It is spread by the respiratory route and a person is infectious 3 to 5 days before the appearance of the rash. Children are no longer infectious once the rash appears and there is no specific treatment.