>"Paracetamol, nicotine, caffeine and epilepsy and diabetes drugs were widely detected, research finds."

The Amazon is home to more than 30 million people, and almost all who live outside the very few large cities rely to some degree on the great forest as a source of medicines.

>"The researchers said in the medical journal The Lancet that the vaccine produced antibodies and killer T-cells to combat the infection that lasted at least two months."