Page last updated at 03:13 GMT, Sunday, 3 August 2008 04:13 UK

US HIV rate 'higher than thought'

HIV particles
The CDC says the epidemic is far from over

The number of Americans infected with the HIV virus each year is much higher than current government estimates, US health officials have said.

The Centers for Disease Control and Prevention (CDC) said 56,000 people had become infected with the virus that causes Aids in 2006.

That is substantially more than the earlier annual estimate of 40,000.

However, the CDC said the rise was due to improved detection methods, rather than an increase in infections.

For the first time, new blood tests can tell how recently an HIV infection occurred, allowing researchers to pinpoint the year it happened.

The increase is also thought to be due to new statistical methods.

HIV/AIDS IN THE US
1.1 million people with HIV/Aids at end 2003
24%-27% unaware of being infected
56,000 new cases in 2006
53% of new infections in 2006 occurred in gay and bisexual men
African American men and women were also strongly affected
Source: CDC

The CDC's Richard Wolitski said the 2006 incidence estimate "reveals that the epidemic is, and has been, worse than previously estimated".

The group added that the annual number of new infections was never as low as 40,000, and that it has been roughly stable since the late 1990s.

The CDC described the findings as a "wake-up call that the US HIV/Aids epidemic is far from over".

"The new estimates underscore the need to expand access to HIV prevention to gay and bisexual men, especially younger men, and to expand access to African-American men and women as well," Dr Wolitski added.

The executive director of the National Alliance of State and Territorial Aids Directors, Julie Scofield, told the Associated Press news agency: "This is the biggest news for public health and HIV/Aids that we've had in a while."

The revised estimated and the methodology behind it are due to be presented at the opening of an international Aids conference in Mexico City on Sunday.

Ahead of the meeting, thousands of activists marched through the city to protest at discrimination against people with HIV.


SEE ALSO
Bush approves $48bn to fight Aids
30 Jul 08 |  Americas
Progress made in HIV prevention
29 Jul 08 |  Health
HIV drug resistance target find
30 Apr 08 |  Health

RELATED BBC LINKS

RELATED INTERNET LINKS
The BBC is not responsible for the content of external internet sites


FEATURES, VIEWS, ANALYSIS
Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit

BBC navigation

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Americas Africa Europe Middle East South Asia Asia Pacific