John is suffering from fifth disease. It is caused by an airborne virus called parvovirus B19. It causes a red rash on children\'s arms, legs and cheeks and hence it is also known as \"slapped cheek disease\". It is more common in children, but it can be more severe for pregnant women or anyone with a compromised immune system. For children with healthy immune systems, fifth disease is a common, mild illness that rarely presents lasting consequences. John can go to kindergarden- in the initial stages of this disease the symptoms such as headache, sore throat, running nose etc are seen, most young people develop a red rash that frist appears on cheeks, the rash often spreads to the arms, legs and trunk of the body within a few days. The rash may last for weeks, but usually by the time you see it you\'re no longer contagious. This infection is common among school age children but is rare in infants and adults Measles A paramyxovirus causes the disease, it usually begins with nasal congestion, eye redness, swelling and tearing, cough, lethargy and high fever. On the third or fourth day of the illness, the child will develop a red rash on the face, which dpreads rapidly and lasts about 7 days. A measles rash, which appears as red, itchy bumps, commonly develops on the head and slowly spreads to other parts of the body. Solution John is suffering from fifth disease. It is caused by an airborne virus called parvovirus B19. It causes a red rash on children\'s arms, legs and cheeks and hence it is also known as \"slapped cheek disease\". It is more common in children, but it can be more severe for pregnant women or anyone with a compromised immune system. For children with healthy immune systems, fifth disease is a common, mild illness that rarely presents lasting consequences. John can go to kindergarden- in the initial stages of this disease the symptoms such as headache, sore throat, running nose etc are seen, most young people develop a red rash that frist appears on cheeks, the rash often spreads to the arms, legs and trunk of the body within a few days. The rash may last for weeks, but usually by the time you see it you\'re no longer contagious. This infection is common among school age children but is rare in infants and adults Measles A paramyxovirus causes the disease, it usually begins with nasal congestion, eye redness, swelling and tearing, cough, lethargy and high fever. On the third or fourth day of the illness, the child will develop a red rash on the face, which dpreads rapidly and lasts about 7 days. A measles rash, which appears as red, itchy bumps, commonly develops on the head and slowly spreads to other parts of the body..