Coronavirus unknowns include how fatal it is and if we can make a vaccine. But we’ve already learned about four things that make the pandemic worse.
Coronavirus lessons on density, mass transit, bureaucracy and censorship: They kill.
More Stories
Brazil rolls out COVID-19 vaccination plan
First Pfizer COVID-19 vaccine shipments to be delivered to US distribution sites starting Monday
CDC advisory panel recommends Covid-19 vaccine for people 16 and over