The intersection of the 101 and 110 freeways in downtown Los Angeles is largely empty as most workers telecommute. Might office policies and employee habits change once stay-at-home orders lift? (Carolyn Cole / Los Angeles Times)
For all the unknowns surrounding the COVID-19 pandemic, one thing is certain: Containing and rolling back the disease is only possible with reliable information about the prevalence of the infection and its spread. The greatest difficulty now is identifying individuals carrying the virus and all the people who interacted with them.