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What Is Mononucleosis?

Mononucleosis, often referred to as "mono," is a very common viral illness. About 90% of people over 35 have been infected with it, probably during early childhood, and have antibodies to the virus in their blood.

When mono strikes young children, the illness is usually so mild that it passes as a common cold or the fluflu. When it occurs during adolescence or adulthood, however, the disease can be much more serious.

Mono comes on gradually. It begins with flu-like symptoms -- fever, headache and a general malaise and lethargy. After a few days, the lymph glands begin to swell, although this symptom is not noticeable in everyone. Swollen glands in the back of the neck are especially typical of mono. Most people develop a sore throatsore throat, which can be very severe, with inflamed tonsils. A fever -- usually no higher than 104 degrees Fahrenheit -- also can develop and may last up to three weeks.

Some people may develop a generalized red rash all over the body (particularly those who take the antibiotic amoxicillin). Others may notice red spots or darkened areas in the mouth that look like bruisesbruises. In about half of all cases, the spleen becomes enlarged, causing an area in the upper-left abdomen to become tender to the touch.

In most cases, the illness mildly affects the liver. However, only a few individuals with mono develop jaundicejaundice, a yellowing of the skin and eyes caused by an increase of the liver's bile protein in the blood.

In rare cases of mono, the liver fails. Other major complications that can develop from mono include rupturing of the spleen, low platelet count, swelling of the covering of the brain or spinal cord, and inflammation of the brain itself. But these, too, are extremely rare.

Most people who come down with mono feel much better within two or three weeks, although fatiguefatigue may last for two months or longer. Sometimes the disease lingers for a year or so, causing recurrent attacks that gradually become more mild. In the past, research suggested that the virus causing mono might be linked to a persistent and debilitating form of an illness known as chronic fatigue syndromechronic fatigue syndrome, which can last for years. Most recent research has shown no such link, however, and the cause of chronic fatigue syndrome remains unknown.

What Causes It?

Mono is caused by the Epstein-Barr virus, named after the two British researchers who first identified it in 1964, although the disease itself had been recognized many years earlier. A common member of the herpesherpes family of viruses, Epstein-Barr is spread primarily through the exchange of saliva, which is why mono is sometimes known as the "kissing disease." However, coughing or other contact with infected saliva can also pass it from one person to another.

The mono virus can stay active in a person weeks or months after all overt symptoms are gone, so close contact with someone who shows no sign of the disease can still put a person at risk. On the other hand, not everyone who lives in proximity to an individual infected with mono comes down with the illness. Scientists believe that a healthy immune system may make it possible to fight off the infection successfully.

2006-06-17 19:10:55 · answer #1 · answered by Anonymous · 0 0

It is a disease of the liver, you get it from others by direct or indirct contact with the infected person. The first sign is poor spelling. You might be a carrier. You cannot spell "what" or even "you". See your grammer school teacher right away and tell him/her that they should have done more for you!

2006-06-18 02:11:55 · answer #2 · answered by k r i s 3 · 0 0

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