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Cytomegalovirus facts for kids

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Cytomegalovirus
Cytomegalovirus 01.jpg
CMV infection of a lung pneumocyte.
Virus classification
Group:
Group I (dsDNA)
Family:
Herpesviridae
Subfamily:
Betaherpesvirinae
Genus:
Cytomegalovirus
Species

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Cytomegalovirus (say: sy-toh-MEG-uh-loh-vy-rus), or CMV for short, is a very common type of Virus that can infect people. Its name comes from Greek words meaning "large cell," because it can make infected cells grow bigger. It's a kind of Herpesvirus, often called HCMV (Human Cytomegalovirus) or Human Herpesvirus 5 (HHV-5).

Just like other herpesviruses, once you get CMV, it stays in your body for a long time, even for your whole life. Most of the time, it doesn't cause any problems or symptoms.

What is Cytomegalovirus?

CMV is a virus that can spread from person to person. It's very common around the world. Many people get it when they are young and don't even know it.

How it Spreads

CMV can spread through body fluids like saliva, urine, blood, and breast milk. It can also spread through close contact with someone who has the virus. For example, sharing drinks or toys with a child who has CMV could spread it.

Who Gets It?

CMV is very common. About two out of every five people in the world have HCMV. In some countries, like the United States and the United Kingdom, more than half of all people have had the virus. This means it's a very widespread infection.

CMV and Your Health

For most healthy people, CMV doesn't cause serious problems. If you get it, you might not feel sick at all. Sometimes, it can cause mild symptoms like a fever, sore throat, tiredness, or swollen glands. These symptoms are often like a common cold or flu.

When CMV Can Be Serious

While usually harmless, CMV can be more serious for certain people. This includes babies who get it before they are born, or people with weakened immune systems. For example, people who have had organ transplants or are undergoing certain medical treatments might have more severe symptoms.

Treatment and Prevention

Currently, there is no cure for CMV. However, scientists are working hard to develop vaccines. These vaccines would help prevent people from getting the virus or reduce how serious the infection is.

Staying Healthy

Since there's no cure, preventing the spread of CMV is important. Good hygiene, like washing your hands often with soap and water, can help. Especially after changing diapers or touching a child's saliva, hand washing is a good idea.

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See also

Kids robot.svg In Spanish: Citomegalovirus para niños

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