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What is it?


HIV is the Human Immunodeficiency Virus that causes failure of part of the immune system. The immune system is important because it defends the body from infection and disease.


Acquired Immune Deficiency Syndrome (AIDS) refers to a range of specific illnesses that people with HIV may get when their immune system is badly damaged. These illnesses include infections and cancers.


The presence of HIV in the body is not an AIDS diagnosis. It is possible for people to have HIV for many years but show no symptoms that define AIDS.


How do you get it?


HIV is only infectious in blood, semen, pre-cum, anal mucus, vaginal fluids and breast milk. A person can only become infected with HIV if one of these body fluids containing HIV gets into their body and passes into their bloodstream. For gay men, the main ways in which this occurs is through unprotected sex (fucking or being fucked without using condoms) or sharing injecting equipment.


For HIV-positive men, having an ‘undetectable’ HIV viral load does not mean that you can’t pass on HIV during unprotected sex. The presence of other STIs increases the levels of HIV in semen and other bodily fluids and therefore increases the risk of HIV transmission. Similarly, HIV may be present in genital ulcers caused by other STIs at levels high enough for HIV transmission to occur.


For HIV negative men having another STI can cause inflammation in the site of infection or ulcers, which increase the chances of picking up HIV.

What are the symptoms or signs?


HIV seroconversion is the term used to describe the process when someone goes from being HIV negative to HIV positive. Shortly after being infected with HIV, a person may (but not always) undergo a seroconversion illness, a severe flu-like illness that will pass in a matter of weeks. Symptoms of this may include fever, rashes, a sore throat and swollen glands. After this time a person becomes HIV-positive as the immune system creates antibodies to fight the infection.


Symptoms of ongoing HIV infection may include unexplained diarrhoea, weight loss, recurrent rashes, fever or an AIDS-related illness. AIDS-related illnesses include illnesses like pneumonia, brain infections, skin cancers, and severe fungal infections.




The common test for HIV is an antibody blood test. Antibodies are the immune system’s response to infection. It can take between 2 weeks and 3 months for the body to produce antibodies. So if an antibody test is done during this window period it is likely to show up negative.


Can it be treated?


There is no vaccine or cure for HIV, and if left untreated the infection can cause serious illness and death. Treatment for HIV is currently provided by highly active anti-viral medications to prevent further damage to the immune system. These attack the virus at different points and stages in its lifecycle.


How can it be prevented?


There are more tools then ever before to prevent HIV, these include condoms, PrEP, PEP and suppressed viral load.


Condoms - are a single use prevention method that work by providing a physical barrier that can prevent transmission of some STI's, including HIV. SAMESH provides condoms for free to men who have sex with men and those at risk or affected by HIV.


PrEP - is a bio-medical prevention regime that utilizes a daily medication provide protection against HIV infection. Visit our PrEP page to learn more about this prevention method.


Undetectable Viral Load -  The most effective method of preventing onwards transmission of HIV, n undetectable viral load level is when the level of the virus in the body is reduced to a point that it cannot be detected by current tests. This does not mean that their body is free or cured of HIV, only that there is less than the test can detect.


In fact, all HIV positive people with an undetectable viral load still have HIV in their blood, as well as in blood cells, tissue and other bodily fluids. HIV-positive people on sustained anti-HIV treatment regimes are commonly able to maintain their viral load at low or undetectable levels.


Most importantly someone living with HIV with a sustained undetectable viral load CANNOT pass on HIV to their sexual partners.


Post Exposure Prophylaxis (PEP)

If you think you may have been exposed to HIV you should consider getting PEP. If you think you may have exposed another person to HIV, let them know about PEP and where they can get it.


PEP is a 4 week course of anti-HIV drugs which may prevent HIV infection, provided the treatment is started as soon as possible after the potential exposure.


To be most effective, PEP should be started as soon as possible after exposure to HIV. If it is not started within 72 hours (3 days) it is not likely to work.

To get PEP, contact your local sexual health clinic or hospital emergency department.


Further information on PEP, including a list of clinics or hospitals can be found at