Condoms: a weapon that is losing strength in the fight against HIV. Some HIV experts worry that public health attention to preventive medication has accelerated the decline in condom use.

Gay and bisexual men are disproportionately affected : They represent only 2 percent of American adults and 70 percent of new HIV cases. HIV rates have decreased in recent years thanks in part to PrEP (pre-exposure prophylaxis) But the decline has lagged behind that of many other wealthy Western nations and even some hard-hit African countries.