The deadly disease HIV / AIDS is not unknown to anyone today. Due to the widespread publicity in the media, a lot of awareness has been created in this regard. According to a survey conducted by the World Health Organization in November, there are currently 33 · 2 million men and women living with HIV / AIDS in the world. The number of women infected with HIV is 15.4 million and the number of innocent children is about 2.5 million . Since the beginning of 2006, 2.5 million men and women have been newly infected with HIV, and the number of AIDS deaths this year is 2.4 million . Since the first human-to-human transmission of the HIV virus in 1981, a total of 2.5 million men and women have died from the disease. About 81 percent of the world's HIV / AIDS patients live in sub-Saharan Africa. Hepatitis B, a life-threatening disease like HIV, remains unnoticed due to the lack of necessary publicity, even though the horrific image of HIV has been able to capture our attention due to widespread propaganda. This silent deadly infectious disease takes the lives of two men and women every minute. One in three people in the world, or two billion men and women, are infected with hepatitis B. About 480 million men and women around the world have been carrying the hepatitis B virus for a long time. Every year, 10-30 million people are newly infected with hepatitis B. One million people die each year from the side effects of hepatitis B and A. The hepatitis B virus is 100 times more contagious than the HIV virus and the two diseases are transmitted in almost the same way. The long-term adverse effects of the disease are more pronounced in children and adolescents than in adults. Although the disease is more serious than HIV, the hope is that no vaccine has yet been developed to prevent HIV , but there are adequate and effective vaccines available on the market to prevent hepatitis B. What is hepatitis B and how many types ? Hepatitis B is a type of inflammation or infection of the liver. Hepatitis B is usually short-term (acute) lasting less than six months and long-term (continuous) lasting more than six months. Inflammation of the liver can be caused by a variety of factors, including viral bacteria , but in most cases, inflammation of the liver is caused by a viral cause. There are usually six types of hepatitis virus (A , E , U , U , U , A). Hepatitis B is a type of DNA virus. Who is at higher risk of contracting hepatitis B * The incidence of hepatitis B is higher among people in underdeveloped and developing countries such as sub-Saharan Africa , most of Asia , Pacific and Alaska. * If Bosnad transfusion is taken repeatedly for the treatment of anemia caused by bleeding and other causes. * If dependent on demodialysis due to kidney failure. * As a result of sexual intercourse between gay men. * Sexual intercourse between men and women infected with hepatitis B virus and with multiple men and women. * Injecting drug use. * Taking drugs of more than one person through the same needle and syringe. * Hepatitis B-infected blood or other liquids inadvertently come into contact with the blood of health workers when collecting blood from the patient's body , administering drugs by saline or injection, or testing blood and fluid collected from the patient's body in the laboratory. * Hepatitis B is more prevalent in such areas - stay in such areas for more than six months. * Staying or working in a nursing home for a long time. * Hepatitis B-infected babies are more likely to be infected with hepatitis B than unborn babies. What is the way to understand if you are infected with Hepatitis B ? It can take one to two months for the Hepatitis B virus to enter the body in any of the ways mentioned above. This period is called the incubation period. Signs and symptoms can vary depending on the short and long term inflammation. Children and adolescents with acute hepatitis B are less likely to have symptoms of the disease. In some cases, it can lead to liver failure and even death.