What is hepatitis B?

What is hepatitis B?

In this article we will talk about the most common form of hepatitis - hepatitis B, explain what hepatitis B in general, including the conditions in which it can exist, as well as what he is dangerous and usingwhich means it can be treated.

Hepatitis B - what it is

Hepatitis B - a viral disease, which is the causative agent - the hepatitis B virus, called the medical literature "HB virus" "virus HBV" or Latin letters - HBV).This virus belongs to the family gepadnavirusov, he has a very high resistance to all kinds of chemical and physical factors.Thus, it is well tolerated both low and high temperatures, is resistant even to the boil, and the repeated freezing and thawing.Furthermore, hepatitis B virus, and brings great prolonged exposure acidic medium.

At room temperature, HB virus persists up to several weeks.It retains the vitality even in dried blood spot, as well as at the end of the needle, and a razor's edge.Serum infective danger it presents at + 30 ° C for 6 months, and at -20 ° C, even about 15 years.The dry blood plasma of hepatitis B virus can live up to 25 years.Inactivated by autoclaving for 30 minutes, and if it is dry-heat sterilized, then for 60 minutes at a temperature of 160 ° C, while warming at a temperature of + 60 ° C only killed after 10 hours.

How dangerous hepatitis B

Hepatitis B virus can be transmitted through blood, saliva, urine, and sexually - by a male sperm and female vaginal discharge.From this it follows that the risk of infection with this disease get drug addicts and persons promiscuous.It should be noted that today there are about 350 million people are infected with the virus, but more than half the cases, the disease has a favorable course, because not accompanied by marked changes in the liver that affect viral hepatitis in the first place.The disease progresses very slowly, and therefore the probability of transition hepatitis B cirrhosis of the liver is very low and does not exceed 5-10%.Furthermore, minimal risk of developing liver cancer.However, it happens and more active development of the disease, which is affected by various factors, which we will not describe here.In this case, the risk of progression to liver cirrhosis hepatitis B can exceed 20%, and liver cancer development is possible only in 10% of patients with cirrhosis.Note, however, that this percentage increases significantly if a person with hepatitis B is abusing alcohol.Rare forms of extrahepatic hepatitis B are associated with damage to body tissues caused by a reaction of the immune system.These are diseases like erythema nodosum, cryoglobulinemia, glomerulonephritis (kidney disease).

Than to treat hepatitis B

In most cases, acute hepatitis B goes away, however, the chronic course of the disease, need medical attention.Patients prescribed antiviral therapy that when applied correctly restores and normalizes the liver, reduces virus replication activity and significantly reduces the risk of cirrhosis.However, a complete cure of the chronic form of hepatitis B is only possible in 20% of cases.In acute hepatitis B patients prescribed detoxication and supportive therapy, which restores the liver tissue and removes toxins from it.