In the most recent data, "he had undetectable viral loads," Diaz said during a virtual press conference on Tuesday.

Injection can prevent HIV more effectively than daily pill, study says

Another study described Tuesday at AIDS 2020 focused on HIV prevention.

A new study found an injection of the investigational drug cabotegravir every eight weeks was more effective at preventing HIV than daily oral pills.

This latest research compared the effectiveness of a pre-exposure prophylaxis, or PrEP -- the daily oral medication Truvada -- with the cabotegravir injection every eight weeks.

Thirteen people receiving the injections acquired HIV, while 39 people taking the daily pill acquired HIV.

Cabotegravir is the first HIV PrEP injection that has been proven effective, according to the study abstract.

Adherence to daily pills in the study was considered high, but "taking a pill daily can be challenging," according to a press release from the National Institutes of Health, which sponsored the study.