It is a common viral infection in children, also referred to as the fifth childhood disease, caused by parvovirus B19. This disease occurs seasonally and causes epidemics in numerous children's groups. The incubation period is from 4-21 days, with typical manifestations on the skin. One of them is a pronounced redness on both cheeks (as if after being slapped with a palm), followed by a typical rash on the upper and lower limbs and trunk. The seed often has a confluent character, as if in the shape of a crescent, and it can move to different parts of the body. It is usually not accompanied by temperatures, maximum around 37 degrees C. The treatment is symptomatic and the seeding subsides within 10-14 days. Pregnant women must be especially protected from this infection because of possible consequences for the fetus after overcoming this disease during pregnancy.