Supporters of the minor opposition People’s Party wear face masks to help protect against the spread of the new coronavirus during a campaign for the 2020 South Korean National Assembly election in Seoul, South Korea, Thursday, April 2, 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/Ahn Young-joon)