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Rate of HIV Infections in US Fell by 73% from 1981 to 2019: Study

FILE - In this image from video, Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention, speaks during a White House briefing, Jan. 27, 2021.

New annual infections with HIV fell by 73% between 1981 and 2019, according to a new analysis by U.S. health authorities released Thursday.

But the proportion of infected minority Black and Latino people has risen, according to the Centers for Disease Control and Prevention (CDC), which published its first report on the then-new and mysterious virus almost 40 years ago, on June 5.

"Reductions are due to the decades-long work of and collaboration with scientists, patients, patient-advocates and communities," said CDC director Rochelle Walensky in a statement.

She reflected on her experience as a young physician in Baltimore at the height of the epidemic when "all I had to give my patients was my outstretched hand and my presence at their bedside," before the mid-1990s when the first highly effective treatments were approved.

There are an estimated 1.2 million people living with human immunodeficiency virus in the United States, about 13% of whom aren't aware they have the virus.

According to the new report, annual HIV incidence increased from 20,000 infections in 1981 to a peak of 130,400 in 1984 and 1985.

The rate stabilized between 1991 and 2007, with approximately 50,000 to 58,000 infections annually, and then decreased in recent years to 34,800 infections in 2019.

But over time, disparities have widened. The proportion of HIV infections among Black people increased from 29% in 1981 to 41% in 2019, and among Hispanic people from 16% to 29% in the same period.

Male-to-male sexual contact continues to account for the majority of infections: 63% in 1981 and 66% in 2019.

Though there is no cure or vaccine, HIV medicine called antiretroviral therapy now exists that manages the virus and prevents it from causing AIDS (acquired immunodeficiency syndrome).

Drugs called pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP) are also available to prevent HIV transmission either before or after risky exposure, respectively.

But while PrEP is 99% effective, only 23% of people who could benefit from it were using it in 2019.

This included 63% of white people, but only 8% of Black people and 14% of Hispanics.

Routine screening and rapid tests have also helped drive the overall fall.

"Prevention tools are increasingly effective, but they need to reach the populations most affected," the report said.

Over half of new HIV infections are in the South.

New infections also remain high among transgender women and people who inject drugs.