Presentation on theme: "Human Immunodeficiency Virus"— Presentation transcript:
1 Human Immunodeficiency Virus HIVHuman Immunodeficiency Virus
2 Human Immunodeficiency Virus HIV DefinedHuman Immunodeficiency VirusHIV attacks specific cells of the immune system, disabling the body’s defenses against other pathogens.HIV infects helper T cells which are responsible for stimulating other cells of the immune system to produce antibodies against invading pathogens.
3 HIV Transmission 4 Fluids that can transmit the virus Blood Semen Vaginal FluidsBreast Milk
4 Transmission RoutesBody OpeningsGenitalsAnusMouthOpening of skin
5 HIV is usually transmitted by: Sexual contact that involves contact with an infected persons’ body fluids (vaginal secretions, semen, blood) through vaginal, oral, and anal sex.Sharing needles with an infected person (IV drugs, steroids, injecting vitamins, tattooing)Mother to baby During pregnancy mother can infect unborn baby in the womb, during the birth process, or breast milk of infected motherContact with infected blood into a cut or sore
6 HIV Testing Test confidentially or anonymously Positive test result= presence of HIV antibodiesAntibodies usually develop within 3 months but can take up to 6 months (6 month window period)Positive test means:You are infected with HIVYou will always have HIVYou can infect others
7 Stages of HIV Infection Asymptomatic Stage:“lack of symptoms” Most people don’t experience symptoms until 7-10 years after infected and they may feel fine. People can still infect others in this stage.
8 Symptomatic Stage This stage is marked by a person feeling symptoms. Symptoms may include:Persistent diarrheaPersistent feverFungal infectionsFatigueSwollen lymph nodesRashesSore throat
9 AIDS Stage AIDS = Acquired Immunodeficiency Disease Is marked by a very low number of T cells. The average number for a healthy person is AIDS is defined at a T cell count under 200. At this point a person’s immune system is extremely low and more susceptible to infection. Opportunistic infections are infections that take advantage of a weak immune system and is what ultimately causes death of an AIDS patient.
10 AIDS SYMPTOMS Coughing and shortness of breath Seizures and lack of coordinationDifficult or painful swallowingMental symptoms such as confusion and forgetfulnessSevere or persistent diarrheaVision lossVarious cancerSevere headachesComaExtreme fatigue
11 HIV Will Lead to AIDS and ultimately cause death A person may move out of the AIDS stage if T cells raise but will never be HIV free
12 How to Prevent Transmission Practice AbstinenceAvoid DrugsAvoid contact with blood or body fluidsSexual fidelity in marriage / monogamous relationshipBarrier protection (latex condoms)