Nearly 40 million people were living with HIV in 2017, the UN says, with just over half taking antiretroviral therapy. These drugs have cut AIDS-related deaths by more than half since the 2004 peak, but the disease cannot be cured. A new mechanism uncovered by a Norwegian research group could improve the chances of developing one.
Broad-spectrum antiviral drugs work against a range of viral diseases, but developing them can be costly and time consuming. Testing existing anti-viral drugs for their ability to combat multiple viral infections can help.