Thousands of Mexicans living with HIV or at risk of infection could be left without life-saving services after the government changed the way it funds treatment, according to public health experts and LGBT+ rights advocates. Reforms announced last month to centralize drug procurement risk sparking shortages, they say, while the government counters that it has ample supplies and hopes its changes will save money and cut corruption in the drugs chain. “There is a crisis,” said Ricardo Baruch, a public health expert and LGBT+ rights advocate. “Suddenly everything has happened together.”