Table 1.

Priority pathogens for vaccine development. The descriptions here are intended to give an overview of the diseases with outbreak potential and the information contained is not exhaustive. More detailed, and updated information may be obtained from the WHO website http://www.who.int/mediacentre/factsheets/en/.

Disease	Characteristics of disease	Insect vector	Main geographic location	Livestock affected
Ebola virus disease	Haemorraghic fever	None	Central and West Africa	None, reservoir in wild animals
Marburg	Haemorraghic fever	None	Angola, Democratic Republic of the Congo, Kenya, and Uganda	None, reservoir in wild animals
Lassa fever	Haemorraghic fever	None	Benin, Ghana, Guinea, Liberia, Mali, Sierra Leone, and Nigeria	None, reservoir in rodents
Crimean Congo haemorrhagic fever	Haemorraghic fever	Ticks	Africa, the Balkans, the Middle East and Asia, in countries south of the 50th parallel north	Cattle, sheep, goats, ostriches
MERS	Chronic respiratory syndrome	None	Middle East	Camels infected but illness not apparent
SARS	Acute respiratory syndrome	None	China	None, reservoir in wild animals
Nipah	Acute respiratory syndrome, enchephalitis	None	Malaysia, Bangladesh, India	Pigs, reservoir in bats
Rift Valley fever	Haemorraghic fever	Aedes and Culex mosquitoes	Africa, Middle East	Sheep, cattle, goats, camels
Zika	Generally mild, but causes severe birth defects	Aedes mosquitoes	South America	None