Summary of global surveillance data of communicable diseases in April 2019

In April 2019, a total of 48 infectious diseases were reported globally, affecting 82 countries and regions. Except for influenza, the top five infectious diseases affecting greatest number of countries and regions were measles (33), dengue fever (32), Chikungunya fever (15), cholera (10) and malaria (6). The top three infectious diseases with highest case fatality rates were Ebola hemorrhagic fever (65.8%), Middle East respiratory syndrome (34.4%) and Lassa fever (22.5%). The top five infectious diseases with greatest number of deaths were measles, Ebola hemorrhagic fever, cholera, dengue fever and Middle East respiratory syndrome. The prevalent infectious diseases in Africa were Ebola hemorrhagic fever, cholera, yellow fever, Lassa fever and measles, the prevalent infectious diseases in Asia were Middle East respiratory syndrome, dengue fever and cholera, the prevalent infectious diseases in America were dengue fever, measles and Chikungunya fever, the prevalent infectious disease in Europe was measles.