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HIV worldwide. What has happened? What has changed?
1Department of Infectious Diseases, Minneapolis Veterans Affairs Medical Center, MN 55417.
Postgraduate Medicine
|June 1, 1992
Summary
The human immunodeficiency virus (HIV) pandemic affects over 10 million globally, with over a million infections in the U.S. HIV prevalence is increasing in women, indicating a shift towards heterosexual transmission.
Area of Science:
- Epidemiology
- Public Health
- Infectious Diseases
Background:
- The human immunodeficiency virus (HIV) pandemic represents a significant global health crisis.
- Over 10 million people are estimated to be infected worldwide, with over 1 million in the United States.
- HIV's rapid spread highlights the complexity of managing multiple, smaller epidemics.
Purpose of the Study:
- To summarize the current global and national epidemiology of HIV infection.
- To describe methods used for estimating HIV prevalence.
- To highlight evolving trends in HIV transmission and affected demographics.
Main Methods:
- Extrapolation from reported Acquired Immunodeficiency Syndrome (AIDS) cases.
- Mathematical modeling and back-calculation techniques.
- Seroprevalence surveys to assess infection rates in populations.
Main Results:
- HIV infection rates are substantial globally and within the U.S.
- Minority populations remain disproportionately affected by HIV.
- Increasing HIV prevalence in women suggests a rise in heterosexual transmission, with male-to-female ratios approaching 1:1 in some surveys.
Conclusions:
- HIV is widespread across the United States with evolving epidemiological patterns.
- The increasing prevalence among women signals a critical shift in transmission dynamics.
- HIV remains a complex and escalating global public health challenge.