Non specific viral illness

Many viruses cause a fine, red spotty rash on part or all of the body. It can look very like the rash of rubella, but often the other features of rubella are absent. If it occurs after the child has been vaccinated against rubella, then it is extremely unlikely to be rubella.

Often a doctor will simply diagnose a ‘non-specific viral infection’. This means that although the features of the illness indicate that this is a viral infection, it is not possible to say exactly what virus is causing it. Technically it is possible to do sophisticated antibody tests to determine what the virus is, but it is usually of no help, as most illnesses will follow their natural course, and full recovery is the rule.

These tests may be helpful when an illness goes on longer than expected, or if there are unexpected complications which can’t be explained any other way.

What to do

• Comfort your child and keep him indoors for a few days
• If your child is not recovering within five days, or if you think it may be rubella, then see your doctor as soon as possible, so the rash can be examined