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Epidemiology Of Hiv

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Get the Facts
U.S. National Institute of Allergy and Infectious Diseases

The Relationship between AIDS and HIV

Contents Introduction The Definition of AIDS The Designation AIDS Is a Surveillance Tool Quantifying the Epidemic A Brief History of the Emergence of AIDS Initial Theories Retrovirus Hypothesis Seroprevalence Surveys HIV and Other Lentiviruses Course of HIV Infection Immunologic Profile of People with AIDS Mechanisms of CD4+ T Cell Depletion Koch's Postulates Fulfilled Evidence From Animal and Laboratory Models Geographic...
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The Epidemiology of Oral Transmission

RMK,Thank you for your service to all of us. I have a question that I believe a lot of us have. I was wondering where you received your figures on transmission stats, specifically on transmission stats involving cunnilingus. I have tried to find...
Ryan M. Kull, C.S.W

Response from Ryan M. Kull, C.S.W

Columbia University's Health & Related Services
When I've said that there are a "few" cases of transmission, I'm using the language that the CDC presents in their literature. In answering questions about statistics, I try to stick as close to the language that the CDC uses... Read more »

Long-term non-progressor of HIV+

I have been living with HIV since 1982, diagnosed with GRID through an Epidemiology Study. Since then, and to today, I remain antiretroviral-free, with largely stable t-cell counts in the 400-500 range. Over the past year, my viral load has been...
Judith Feinberg, M.D.

Response from Judith Feinberg, M.D.

University of Cincinnati, College of Medicine
First of all, I would not describe you as a long-term nonprogressor. You do indeed have signs and symptoms related to your HIV disease, and a substantial viral load. Two bouts of pneumonia within a year satisfies one of the case definitions for... Read more »

HIV-1 and HIV-2 difference

Please what is the difference between HIV-1 and HIV-2. What are the symptoms of each of them.Is ARS the same thing as HIV-1...
Gerald Pierone, M.D.

Response from Gerald Pierone, M.D.

AIDS Research and Treatment Center of the Treasure Coast
HIV-1 is the predominant form of virus worldwide that accounts for the AIDS pandemic. It was originally derived from a very similar retrovirus in Chimpanzees and made the leap into the human population in Africa in the 1920s as best we can tell from... Read more »

hiv+ woman performing fellatio on hiv- man risky?

I've seen some stats here on oral sex but can't quite figure out if the stats pertain to the scenario of an hiv+ woman performing fellatio on an hiv- man. Is the man at risk for contracting hiv in this manner, and if so, what do the stats...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi,The risk is extremely low. The estimated per-act risk for acquiring HIV from unprotected insertive (negative guy) oral sex with a poz partner (male or female) is 0.5 per 10,000 exposures. However, please note these are merely estimates and not... Read more »
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2001 articles, Men and HIV/AIDS

Posted by Anonymous
The Body, 2001: Men, epidemiology fact sheet:

Over 70% of Hiv infections occur through sex between men and women. Yet in most regions of the world 2/3 or more with Hiv are men. 53% of all people with hiv are men.
5% to 10% occur through sex... Read more »

CDC Report

Posted by Anonymous, 2 Replies
Just a quick question if anyone knows the answer, when the CDCs Surveillance reports give percentage of Heterosexual Transmissions does this include heterosexual Anal Sex or is that under another catagory because wouldn't anal sex regaurdless of... Read more »

Marine Corps Policies and Procedures for HIV 6/11/1991

Posted by Anonymous
Greetings! I have found actual policy information concerning HIV from the Marines Corps. You must have Acrobat Reader to view. You may go to the link: Read more »

I was denied an HIV test in Canada..

Posted by Anonymous, 1 Reply


I live in Alberta, Canada and about a 5 weeks ago I had
a possible exposure. I went to the provincial clinics here and was turned down for an HIV test because their policy is to test only 3 months after the possible incident. They feel
that... Read more »