Ferrokarrilla del Norte - Manuel Elkin Patarroyo dies

Colombian scientist Manuel Elkin Patarroyo has died. He was an epidemiologist and pathologist with an important career, especially in malaria research. In fact, he created a malaria vaccine; but the effectiveness of the vaccine has been controversial and development has been abandoned over time. It was controversial and at the same time very important. A person to remember, no doubt.