Travellers and airport staff, some wearing masks as a precaution against the coronavirus outbreak, walk through Robert Mugabe International airport in Harare, Wednesday, March, 11, 2020. For most people, the new coronavirus causes only mild or moderate symptoms, such as fever and cough. For some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia. (AP Photo/Tsvangirayi Mukwazhi)

March 11, 2020