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Cytomegalovirus

Background

Cytomegalovirus (the large cell virus) is a common virus and about fifty per cent of the population of Britain have been infected with it at some time. Frequently the infection passes unnoticed or there may be mild flu-like symptoms. The virus belongs to the herpes family, which includes the chicken-pox, cold sore and glandular fever viruses. Once infection has taken place, the virus remains dormant within the body, usually with no ill effects. However, recurrences of the virus in body fluids may occur at intervals.

In the UK about forty per cent of women are susceptible to CMV at the time of pregnancy. The main risk is when women catch the viral infection for the first time in pregnancy. Women are usually only mildly unwell with a sore throat and flu-like illness. The chance of the baby becoming infected is about forty per cent. Over ninety per cent of infected babies have no signs of anything wrong at birth.

What are the symptoms? View What are the symptoms?

Medical text written November 1991 by Contact a Family. Approved November 1991 by Professor M Patton, Professor of Medical Genetics, St Georges Hospital Medical School, London, UK and Dr J E Wraith, Consultant Paediatrician, Royal Manchester Children's Hospital, Manchester, UK. Last updated December 2004 by Dr M Sharland, Consultant Paediatrician in Paediatric Infectious diseases, St George's Hospital, London, UK.

 

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