The Human Immunodeficiency Virus or HIV is one of the most feared and notorious disease today. It can infect anyone, regardless of age, weight, height, or nationality. It is labeled as a pandemic illness because of its ability to quickly spread from one person to another.

HIV has two types: the HIV-1 and the HIV-2. The HIV-1 spreads around faster and is the reason for the global infection.

There are four stages of HIV, and anyone who is infected with it may go through all of them. Here is some important information on each stage:

First Stage

The first stage is known as the incubation period.No noticeable signs or symptoms are experienced during this period. It can last for a few days or a few weeks.

Second Stage

An HIV infected person will begin manifesting some symptoms like rashes, weakening of the muscles, sore throat, fever, mouth sores, and swelling of the lymph nodes. 

Third Stage

This stage is also known as the latency period. It can persist for a few years, so a  patient has to undergo antiretroviral treatment to decrease the risks and cut the length of this stage to a number of weeks at the most. Once this stage starts, the immune system will begin to produce antibodies that will battle the virus.

Fourth Stage

This stage is best known as AIDS. This develops when HIV remains undiagnosed and untreated. AIDS patients can undergo antiretroviral treatment to slow down the damage done by the virus.