All Sauce from Weekly Sauce:

More evidence has surfaced that the COVID-19 coronavirus was circulating in the United States as much as a month prior to the first confirmed local case in February, the U.S. Centers for Disease Control and Prevention reported Friday. Genetic analysis of early cases suggests a single line of coronavirus imported from China began circulating in…  read on >

A new study suggests the rate of COVID-19 among pregnant women without symptoms is much lower than previously reported. Fewer than 3% of asymptomatic women admitted to three Yale New Haven Health hospitals for labor and delivery during April tested positive for COVID-19 infection. That contrasts with a 13.5% rate reported in a study of…  read on >

(HealthDay News) — The drug Tagrisso could offer hope to patients battling a form of lung cancer that typically hits people with little or no history of smoking, a new trial finds. Taken after surgery to remove the lung tumor, Tagrisso (osimertinib) greatly extended the average survival of people battling a non-metastatic form of non-small…  read on >

Preschoolers may spend more time on smartphones or tablets than their parents realize, and some use apps intended for teens and adults, researchers report. A new study tracked mobile device use among 350 children aged 3 to 5 over nine months and compared their findings with parents’ estimates of their use. Preschoolers with their own…  read on >

For months, the coronavirus pandemic forced hospitals to delay elective surgeries as doctors turned their attention to treating COVID-19 patients, but the spigots on non-urgent procedures are about to reopen. Unfortunately, two new reports from Johns Hopkins University researchers suggest that hospitals will be stretched to the limit by the oncoming surge of rescheduled surgeries.…  read on >

A grieving widower played by Matt Damon flashes a shiny coded wristband for security guards to scan in the 2011 movie “Contagion.” After a quick beep and a green light, Damon is allowed into a store to buy a prom dress for his daughter. That wristband was an “immunity passport” — a certification of his…  read on >