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.
Our immune systems are working overtime this time of year. Knowing that a bunch of dedicated immune cells are willing to explode themselves to inform other cells about the danger may offer a bit of consolation.