The World Health Organization is warning of increasing resistance to widely used HIV drugs, which could threaten global progress against HIV.
In six out of 11 countries it studied from 2014-2016, 10% of people starting antiretrovirals had HIV strains resistant to efavirenz or nevirapine.
In new treatment guidelines, the WHO recommends that countries review their HIV treatment programs. When drug resistance rates become high, the group recommends switching new users to another first-line therapy.
If countries take no action in the face of increasing resistance, models predict an additional 135,000 HIV-related deaths and 105,000 new infections in the next 5 years.