It is spread by exposure to secretions or droplets from the nose and throat. It occurs more commonly in children of elementary school age. The symptoms start with a low grade fever and fatigue. A red rash which looks like a slap mark commonly appears on the cheeks and a fine lace-like rash may appear on the body. The rash may be itchy.
Some people have mild signs of illness or no symptoms at all.
The above symptoms are more common in children. Adults more commonly have arthritic pain and less rash or fever. Symptoms start 1-2 weeks after exposure. A person is most contagious about one week before the onset of the rash, and once the rash starts, it probably cannot be spread to others. There is no specific treatment.