Open windows. Don’t share food. Here’s the government’s coronavirus advice.

(Alvaro Barrientos | AP) Txutxin Zudaire drives an empty public bus, in Pamplona, northern Spain, Friday, March 13, 2020. For most people, the new COVID-19 coronavirus causes only mild or moderate symptoms, such as fever and cough, but for some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia.