Table 1.
Recent outbreaks of pathogenic human viruses.
| Virus | Year | Number of cases | Country/Territory | Total number of territories |
|---|---|---|---|---|
| Zika virus | (2013-2018) | >220,000 | Americas, Africa, Asia | 85 |
| Rift Valley fever virus (RVFV) | (2013-2018) | >1,000 | Africa, Saudi Arabia and Yemen | 31 |
| Ebola virus | (2014-2018) | >28,900 | West Africa (Liberia, Guinea, Sierra Leone, Nigeria, and Mali) | 6 |
| Middle East respiratory syndrome coronavirus (MERS) | (2012-2017) | >2,200 | Middle East, North Africa, Europe, the United States of America, and Asia | 27 |
| Severe acute respiratory syndrome coronavirus (SARS-CoV) | (2002-2003) | >8,000 | North America, South America, South Africa, Europe, and Asia | 30 |
| Influenza virus | Annual epidemics | 3 to 5 million cases per year | Worldwide | |
| Chikungunya virus (CHIKV) | (2013-2018) | > 2 million | Americas, Africa, Asia, Europe, the Indian subcontinent and Pacific Islands in Oceania | 112 |
| Dengue virus | Annual epidemics | 390 million dengue infections per year | Africa, the Americas, the Eastern Mediterranean, South-East Asia and the Western Pacific. | 111 |
| Yellow fever virus (YFV) | (2013-2018) | >15,000 | 33 countries in Africa and 11 countries in South America | 44 |
| West Nile virus (WNV) | (2013-2018) | >12,000 Since 2013: Around 2500 cases per year | North and South America, Europe, Africa, the Middle East, and West Asia and Oceania | 83 |
| Crimean-Congo hemorrhagic fever virus (CCHFV) | (2000-2015) | >1,000 | Africa, Asia, Eastern and Southern Europe and Central Asia | 42 |
| Severe fever with thrombocytopenia syndrome virus (SFTSV) | (2009-2016) | >1300 Since 2016: >1500 cases per year | South Korea, Japan, China and United Arab Emirates | 4 |
Sources: European Centre for Disease Prevention and Control. ECDC. (https://ecdc.europa.eu/en/threats-and-outbreaks) U.S. Centers for Disease Control and Protection. CDC. (https://www.cdc.gov/outbreaks/index.html) Chinese Center for Disease Control and Prevention (China CDC). (http://www.chinacdc.cn/en/aboutus/orc_9362/201810/t20181008_194504.html) World Health Organization (WHO). (https://www.who.int/csr/don/en/).