PubMed · 5445883
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C P Groves. 1970-06-06. Gigantopithecus and the mountain gorilla.. https://doi.org/10.1038/226973a0
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Since the 1988 World Health Assembly resolution to eradicate poliomyelitis, three World Health Organization (WHO) regions (Americas, European, and Western Pacific) have been certified polio-free, and the number of countries with endemic polio has decreased from 125 in 1988 to six in 2003 (Afghanistan, Egypt, India, Niger, Nigeria, and Pakistan). During January 2003-March 2004, importations of wild poliovirus (WPV) occurred in eight countries that were previously polio-free: five in the West African block (Benin, Burkina Faso, Cote d'Ivoire, Ghana, and Togo) and three in the Central African block (Cameroon, Central African Republic, and Chad), resulting in 63 polio cases. This report summarizes the 1) investigation and response to these WPV importations and 2) progress toward polio eradication in West and Central Africa.
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Several human and animal Ebola outbreaks have occurred over the past 4 years in Gabon and the Republic of Congo. The human outbreaks consisted of multiple simultaneous epidemics caused by different viral strains, and each epidemic resulted from the handling of a distinct gorilla, chimpanzee, or duiker carcass. These animal populations declined markedly during human Ebola outbreaks, apparently as a result of Ebola infection. Recovered carcasses were infected by a variety of Ebola strains, suggesting that Ebola outbreaks in great apes result from multiple virus introductions from the natural host. Surveillance of animal mortality may help to predict and prevent human Ebola outbreaks.