Exercício 4412

Public Health Cholera tightens grip on Haiti by Declan Butler As cholera rampages through Haiti, some epidemiologists are warning that the country could face more than half a million cases over the coming year. “It’s spreading like wildfire,” says Andrew Camilli, a cholera researcher at Tufts University School of Medicine in Boston, Massachusetts. As the current Haitian population has never been exposed to cholera, they lack any immunity to the disease, which makes the toll even greater. Vaccination might have helped, but it was not an option in Haiti because of the vaccine’s scarcity and the logistical difficulties in getting it to people in time. (Adaptado de Nature, vol. 468, p. 483-484, 2010.) a) Qual é a expectativa dos epidemiologistas com relação à disseminação do cólera no Haiti? O que explica a expansão dessa doença no país? b) Por que a vacinação não foi utilizada no combate ao cólera no Haiti?