HIV AIDS was discovered in the 1980s in some young males. All these patients with AIDS were homosexual (sex between two males). Later, some non-homosexual patients with AIDS were discovered. HIV Symptoms were discussed below.
They received a blood transfusion and or blood products. In 1984, the virus of AIDS was discovered at the Pasteur Institute of France and the National Institute of Health in the USA. In 1986, the virus was named the Human immunodeficiency virus (HIV).
The HIV virus affects helper T- Lymphocytes (white blood cells). T- Lymphocytes are Major components of the immune system. The increase in infection of HIV decreases the number of T- Lymphocytes. It results in the failure of the immune system. So the infected person is attacked by many diseases.
HIV also infects the cells of the central nervous system (brain and spinal cord). The latest studies show that this virus also infects and multiplies in monkeys. But they do not cause disease in them. It means that HIV is host-specific.
HIV – the virus can be transmitted to other persons by blood or semen because it is active only in body fluid. The methods of its transmission are as follows:
When already infected blood by HIV is transfused into the body of a person, then this virus enters the body.
When unsterilized syringes and needles are used, HIV may enter the body.
Through cuts and open wounds, viruses can be transferred from one person to another.
The virus can be transferred from mother to baby through the placenta at birth or through milk food from the mother.
Sexual contact is the main cause of transmitting the virus from an infected person to a non-infected person.
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