Summary of global surveillance data of infectious diseases in August 2019

In August 2019, a total of 58 infectious diseases were reported globally, affecting 79 countries and regions. Except for influenza, the top five infectious diseases affecting greatest number of countries and regions were dengue fever (32), measles (30), cholera (10), West Nile fever (8) and poliomyelitis (8). The top four infectious diseases with highest case fatality rates were Ebola hemorrhagic fever (66.8%), Middle East respiratory syndrome (34.5%), Lassa fever (22.1%) and West Nile fever (9.2%). The top five infectious diseases with greatest number of deaths were dengue fever, Ebola hemorrhagic fever, measles, cholera and West Nile fever. The prevalent infectious diseases in Africa were Ebola hemorrhagic fever, plague, cholera, yellow fever and Lassa fever, the prevalent infectious diseases in Asia were Middle East respiratory syndrome and dengue fever, the prevalent infectious diseases in America were dengue fever and measles, the prevalent infectious diseases in Europe were West Nile fever and measles.