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8 Cards in this Set
- Front
- Back
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What is AIDS? How many types are there? |
A disease of the human immune system caused by the humanimmunodeficiency virus (HIV) HIV-1 (most common) HIV-2 (less infective; West Africa) |
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What are the three symptoms of HIV/AIDS? |
Acute infection - flu-like symptoms 2-4 weeks post exposure Clinical latency - asymptomatic for ~8 years, symptoms emerge near the end of this period (fever/weight loss/pain/swollen lymph nodes Acquired Immunodeficiency Syndrome (AIDS) - pneumocystispneumonia, recurring respiratory infections, opportunistic infections, etc |
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What are the three ways HIV is transmitted?
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Sexual contact (vaginal/anal/oral) Exposure to infected bodily fluids/tissues Vertical transmission during pregnancy/delivery/breastfeeding |
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Where did we first thing HIV came from? |
First thought to be from gay Canadian Gaeten Dugas, flight attendant in '80s - proved to be false |
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Explain the cut hunter hypothesis |
Bantu man in Southeastern Cameroon kills a chimp, butchers it, cuts self, blood-blood contact |
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What's the prognosis without treatment from time of infection? From time of diagnosis of AIDS? |
9-11 years; 6-19 months |
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What are the three benefits of antiviral treatment? |
Death rate reduced by 80% Many people never develop AIDS Transmission reduced up to 96% during intercourse, 99% in pregnancy |
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How many people have died since first case? What was the 2011 Canadian incidence? Prevalence? How many Canadians are infected but don't know it? |
31 million 2,250 - 4,100 new cases; 53,320 prevalenced 18,000 |
