I think this is helpful context from the actual report (linked at the top of the WaPo article):

In 2022, half as many (47%) of adolescent girls and young women acquired HIV as in 2010. Even with this decline, we are not on track to meet our 2030 target to end new HIV infections among adolescent girls and young women.

The global sex-distribution of new HIV infections among adolescents is driven largely by sub-Saharan Africa, which carries the overwhelming global burden of HIV. In 2022, 33% of older adolescents aged 15-19 years newly infected with HIV lived outside of the region. In the Middle East and North Africa region, the number of young people living with HIV has increased by 13% since 2010. In East Asia and the Pacific and Latin America and the Caribbean, two thirds of new adolescent infections, age 10-19 years, occur in boys. Stigma, discrimination, societal inequalities and violence sabotage the efforts of adolescents and young people to protect themselves against HIV and other health threats. Young key populations are especially vulnerable.