HIV prevalence by country
HIV is a retrovirus, which means it carries single-stranded RNA as its genetic material rather than the double-stranded DNA human cells carry.
Retroviruses also have the enzyme reverse transcriptase, which allows it to copy RNA into DNA and use that DNA "copy" to infect human, or host, cells..
How is HIV incidence measured?
In general, HIV incidence is expressed as the estimated number of persons newly infected with HIV during a specified time period (e.g., a year), or as a rate calculated by dividing the estimated number of persons newly infected with HIV during a specified time period by the number of persons at risk for HIV infection..
How many people have died from HIV?
Since the beginning of the epidemic, 85.6 million [65.0–113.0 million] people have been infected with the HIV virus and about 40.4 million [32.9–51.3 million] people have died of HIV.
Globally, 39.0 million [33.1–45.7 million] people were living with HIV at the end of 2022..
What are the benefits of HIV prevalence surveys?
These complementary surveys provide standardized information to local and national public health officials on the extent of HIV infection in geographic areas and population subgroups so that education and prevention programs can be developed and evaluated..
What are the epidemiological determinants of HIV?
Behavioral risk factors for HIV transmission among heterosexuals include number of sex partners, frequency of unprotected intercourse, commercial sex, a history of or concurrent infection with an STD, lack of male circumcision, and anal intercourse; many women are at risk only because they have unprotected intercourse .
What are the statistics of HIV?
Global HIV statistics
39.0 million [33.1 million–45.7 million] people globally were living with HIV in 2022. 1.3 million [1 million–1.7 million] people became newly infected with HIV in 2022. 630 000 [480 000–880 000] people died from AIDS-related illnesses in 2022..
What is epidemiology of HIV explain?
Epidemiology of HIV and AIDS.
Epidemiology is the study of how disease is distributed in populations and the factors that influence the distribution.
Epidemiologists try to discover why a disease develops in some people and not in others.
Clinically, AIDS was first recognized in the United States in 1981..
What is HIV incidence?
HIV incidence refers to the estimated number of new HIV infections during a specified period (such as a year), which is different from the number of people diagnosed with HIV during a given year..
What is the epidemiology of HIV in the world?
Since the beginning of the epidemic, 85.6 million [65.0–113.0 million] people have been infected with the HIV virus and about 40.4 million [32.9–51.3 million] people have died of HIV.
Globally, 39.0 million [33.1–45.7 million] people were living with HIV at the end of 2022..
What is the source of HIV data?
CDC'S National HIV Surveillance System is the primary source for monitoring HIV trends in the United States.
CDC funds and assists state and local health departments to collect the information..
What is the statistical analysis of HIV?
An estimated 25.6 million [21.6–30.0 million] people were living with HIV in 2022, of which 90% [76 to \x26gt;98%] knew their status, 82% [69–96%] were receiving treatment and 76% [64–89%] had suppressed viral loads.
An estimated 20.9 million people were receiving antiretroviral therapy in 2022..
What is the statistics of HIV?
Global HIV statistics
39.0 million [33.1 million–45.7 million] people globally were living with HIV in 2022. 1.3 million [1 million–1.7 million] people became newly infected with HIV in 2022. 630 000 [480 000–880 000] people died from AIDS-related illnesses in 2022..
What is the study of HIV epidemiology?
HIV/AIDS research includes all medical research that attempts to prevent, treat, or cure HIV/AIDS, as well as fundamental research about the nature of HIV as an infectious agent and AIDS as the disease caused by HIV..
Where is HIV research?
But still more research is needed to help the millions of people whose health continues to be threatened by the global HIV/AIDS pandemic.
At the National Institutes of Health, the HIV/AIDS research effort is led by the National Institute of Allergy and Infectious Diseases (NIAID)..
Why is it important to study about HIV?
Everyone needs to learn how and why not to discriminate against positive people.
People who are not HIV positive must learn about how the virus is transmitted in order that they are able to protect themselves from infection.
At the same time, they must also learn how the virus is not transmitted..
- A single virus is sufficient to produce an HIV-1 infection by sexual transmission.
Elucidating molecular viral-host interactions responsible for virus transmission is important for curbing the AIDS pandemic.
HIV-1 transmission results from virus exposure at mucosal surfaces or from percutaneous inoculation. - But still more research is needed to help the millions of people whose health continues to be threatened by the global HIV/AIDS pandemic.
At the National Institutes of Health, the HIV/AIDS research effort is led by the National Institute of Allergy and Infectious Diseases (NIAID). - Epidemiological studies are the main source of information on the prevalence and incidence of HIV infection and AIDS, the modes and efficiencies of HIV transmission, the proportion of infected individuals who progress to AIDS, serologic markers of disease progression, and the distribution of behaviors associated with
- Established in 1986, the Center for AIDS Prevention Studies (CAPS) at UC San Francisco is the world's largest research center dedicated to social, behavioral, and policy science approaches to HIV.
