Health officials warn that drug-resistant HIV is on the rise

In a new report, the World Health Organization (WHO) warns that resistance to the drugs used to treat HIV is on the rise.

According to the latest WHO HIV Drug Resistance report, six out of 11 countries surveyed reported that more than 10% of people who are starting antiretroviral therapy in their country have a strain of the virus that's resistant to the drugs used to treat it.

The countries that went above the 10% threshold are Argentina, Guatemala, Namibia, Nicaragua, Uganda and Zimbabwe.