Summary of global surveillance data of infectious diseases in November 2020

In November 2020, a total of 61 infectious diseases were reported globally, affecting 223 countries and regions.Except for influenza, the top five infectious diseases affecting greatest number of countries and regions were COVID-19 (223), dengue fever (30), measles (13), zika virus disease (11) and poliomyelitis (11). The top five infectious diseases with highest case fatality rates were Ebola virus disease (42.3%), yellow fever (41.0%), Rift Valley fever (33.3%), Lassa fever (20.7%) and West Nile fever (11.1%). The top five infectious diseases with greatest number of deaths were COVID-19, yellow fever, dengue fever, cholera and Lassa fever.The prevalent infectious diseases were COVID-19 and dengue fever in Asia, COVID-19, Ebola virus disease, cholera, yellow fever, Rift Valley fever and Lassa fever in Africa, COVID-19 and dengue fever in America, COVID-19 and West Nile fever in Europe.