These high smoking rates increase the tobacco-related health problems among LGBT people: lung cancer, chronic obstructive pulmonary disease, and an increased risk for esophageal cancer are just some of the reasons why tobacco use is a problem. If you are L, G, B, or T and a smoker, you should seek prevention and treatment services. And it is the job of those who conduct cessation and treatment programs to provide culturally competent care to LGBT smokers. If the programs in your area do not do so, why not identify the source of their funding and determine the extent to which they are obligated to do so?
PART SIX: HIV/AIDS
The Human Immunodeficiency Virus that causes AIDS attacks the CD4+ T cells and reduces the individual's ability to fight off infections. HIV is spread through unprotected anal, vaginal, oral sex; sharing needles; and mother to child during pregnancy, childbirth, or through breastfeeding. AIDS is the Acquired Immune Deficiency Syndrome, and is the result of HIV infection. AIDS is an acute form of HIV infection. A diagnosis of AIDS means that an individual is living with HIV and also has a CD4+T-cell count of 200 or less and an opportunistic infection. (More on CD4+T cells shortly.) The virus can be passed spread from one person to another during anal, vaginal, and less commonly during oral sex. HIV can also be spread by sharing needles or equipment to inject drugs, tattoo or body pierce. It can also be passed from a mother with HIV to her baby. Currently there is no vaccine to prevent HIV infection nor is there a cure.
HIV Transmission
HIV belongs to a subgroup of retroviruses known as lentiviruses, or 'slow' viruses. It attacks the immune system. People infected with HIV become vulnerable to a variety of infections and some cancers. The course of infection with these viruses is characterized by a long interval between initial infection and the onset of serious symptoms. So, when someone develops symptoms their doctor may not diagnose them as having AIDS. They may only have a few days of flu-like symptoms. But, if identified early, steps can be taken (behavior modification, support, and medical treatment) so that the individual with HIV can live longer and healthier.
CD4+ T (a type of white blood cell that helps to protect the body from infection) tells the immune system how to perform when an infection occurs. But the HIV virus targets and destroys these cells, thus weakening the immune system. A healthy, uninfected person usually has 800 to 1,200 CD4+ T cells per cubic millimeter (mm3) of blood. During untreated HIV infection, the number of these cells in a person's blood progressively declines. When the CD4+ T cell count falls below 200, the HIV infected person becomes particularly vulnerable to the opportunistic infections and cancers that typify AIDS, the end stage of HIV disease. People with AIDS often suffer infections of the lungs, intestinal tract, brain, eyes, and other organs, as well as debilitating weight loss, diarrhea, neurologic conditions, and cancers such as Kaposi's sarcoma and certain types of lymphomas.
Structure of HIV and CD4+T Cell and the Infection Process
Courtesy of the Howard Hughes Medical Institute
Most scientists think that HIV causes AIDS by directly inducing the death of CD4+ T cells or interfering with their normal function, and by triggering other events that weaken a person's immune function. For example, the network of signaling molecules that normally regulates a person's immune response is disrupted during HIV disease, impairing a person's ability to fight other infections. The HIV-mediated destruction of the lymph nodes and related immunologic organs also plays a major role in causing the immunosuppression seen in people with AIDS. Immunosuppression by HIV is confirmed by the fact that medicines, which interfere with the HIV lifecycle, preserve CD4+ T cells and immune function as well as delay clinical illness.
[For more details on the structure and process of HIV, go to the National Institute of Allergy and Infectious Diseases' Fact Sheet]
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EXERCISE 29: Misinformation
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There are a great many myths and misconceptions concerning the nature of AIDS. See if you can recall some you've heard, then go to the Discussion Board item titled HIV/AIDS Myths and read what others have said about the myths they've heard. If your experience is different or you'd like to add something to what others have said, post a response.
Transmission and Prevention
The HIV virus is transmitted through three primary routes:
- Through unprotected vaginal, anal, or oral sex
- Through shared needles (i.e. drug use, tattooing, body piercing) and Needle stick injury
- From Mother to Child during pregnancy, childbirth, or breastfeeding.
The following body fluids spread HIV:
- Blood
- Semen
- Vaginal fluid
- Breast milk
HIV cannot be spread by:
- Shaking hands
- Dry kissing
- Using the same eating or drinking utensils
- Restroom facilities
- Hugging
- Coughing
- Sneezing
- Casual contact at church, in school, or in the workplace
Reducing the risk of HIV
The risk of HIV can be reduced by practicing safe sex: a latex condom for vaginal, anal, or oral sex or, if the patient has an allergy to latex, a polyurethane condom (e.g. Durex Avanti Polyurethane Condoms).
If the patient uses injection drugs, he or she can reduce risk by not sharing needles. It's important that they understand that using a needle that is not sterile not only reduces the possibility of HIV, but of hepatitis B and other blood-borne pathogens. (Most people are aware of the risk involved in sharing needles when injecting drugs. What many do not realize is that the "tie off" also, if shared, may pick up blood from one user and transfer it to another.)
The same holds true for those who share needles for tattooing, body piercing, or medicinal purposes (i.e. diabetes). The potential risk of infection is just as high for these 'legal' uses as it is for those that are illegal.
Modifying behavior will also reduce the risk. Drug and alcohol use are a prime example. When people are high or inebriated they may participate in sexual activities that put them at risk.
One more way to reduce risk is for health and childcare workers who come into contact with blood or bodily fluids containing blood, to follow universal precautions that prevent HIV, hepatitis B, and other blood-borne pathogen infections. These precautions include:
- Wearing latex gloves whenever contact with blood, skin and mucous membrane cuts or lesion might occur.
- Discarding gloves before working with another patient.
- Washing hands.
- Properly disposing of materials exposed to blood (e.g. needles).
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EXERCISE 30: Are you Concerned About HIV Transmission?
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Have you ever been in a situation where you were concerned about the possibility of contracting the AIDS virus? Write an e-mail to your coach and describe the situation.