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Table 2 World population affected by study arboviruses

From: Measuring the burden of arboviral diseases: the spectrum of morbidity and mortality from four prevalent infections

Arbovirus Number of affected countries Population in endemic countries (% of global population) Estimated deaths per yeara Chronic cases per yeara
Yellow fever 44 972,155,287 (15%) 675-30,000 0 to 1,955
Japanese encephalitis 23 3,706,910,037 (57%) 3,500 to 15,000 7,350 to 22,500
Chikungunya 41 2,548,842,950 (39%) 33 to 25,761 1,193 to 46,453
Rift Valley fever 32 778,528,381 (12%) 4 to 91 12 to 272
  1. a Note: These are annualized averages over combined epidemic and interepidemic periods.