THE World Health Organisation (WHO) has launched a massive vaccination campaign against yellow fever in Liberia, and has sent 30 000 vaccine doses to prevent a deadly outbreak in Sierra Leone. The United Nations health agency said the mosquito-borne disease has spread to six of Liberia’s 14 counties, including the outskirts of Monrovia, a capital of 1.6m people. ”The risk of further transmission is high. Yellow fever, which causes hepatitis and jaundice, often has a high mortality rate. – Reuters
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