CDC: US HIV Diagnoses Improving, But Progress Varies

Delays in the time between becoming infected with HIV and getting a diagnosis are shortening, helped by efforts to increase testing for the virus that causes AIDS, U.S. health officials said.

The report, released Tuesday by the Centers for Disease Control and Prevention, found that 50 percent of the 39,720 people diagnosed with HIV in 2015 had been infected for at least three years, a seven-month improvement compared with 2011.

Nevertheless, 25 percent of people diagnosed with HIV in 2015 were infected for seven years or more before being diagnosed.

CDC Director Dr. Brenda Fitzgerald said the report shows the nation is making progress in the fight against HIV, but the gains are uneven, and challenges remain.

“Too many people have HIV infections that go undiagnosed for far too long,” Fitzgerald said in a conference call with reporters.

Shortening the time between HIV infection and diagnosis is key to prevention. The CDC estimates that about 40 percent of new HIV infections are caused by people who did not know they were infected.

Although testing rates increased overall, an estimated 15 percent of people living with HIV in 2015 did not know they were infected, and half of people who were unaware of their infection in 2015 lived in the South.

The report found many other disparities, with delays in diagnosis varying significantly by race/ethnicity and gender.

For example, the estimated time from HIV infection to diagnosis was a median of five years for heterosexual men, twice as long as heterosexual women. The median was three years for gay and bisexual men.

“The report tells us some groups, particularly heterosexual men and racial and ethnic minorities, live with HIV longer than other groups before they are diagnosed,” Dr. Jonathan Mermin, director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, told the briefing.

Among high-risk individuals, many reported not being tested in the prior year, including 29 percent of gay and bisexual men, 42 percent of people who inject drugs and 59 percent of heterosexuals at increased risk for HIV.

Two-thirds of those who had not been tested for HIV in the prior year had seen a health care provider, which Mermin considered a missed opportunity for testing.

People who are diagnosed and take medications to control HIV are significantly less likely to spread the disease.

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