KEEP WEARING THE MASK—We card-carrying epidemiologists (with formal doctorate in epidemiology) know what we are talking about. Vast majority of 700+ epidemiologists surveyed says we would keep wearing masks for 1 year or longer. #COVID19#MaskUp
2) “When federal health officials said on Thursday that fully vaccinated Americans no longer needed to wear masks in most places, it came as a surprise to many people in public health. It also was a stark contrast with the views of a large majority of epidemiologists surveyed.
3) “In the informal survey (of professional epidemiologists), 80 percent said they thought Americans would need to wear masks in public indoor places for at least another year. Just 5 percent said people would no longer need to wear masks indoors by this summer.
2) Osaka, along with Tokyo and two other prefectures, will remain under a state of emergency called in late April until at least the end of this month, and another three regions are due to join them from Sunday, Japanese media reported on Friday.

3) the vaccine rollout for older people and other at-risk groups is only just picking up speed. About 3% of the population of 126 million have been inoculated so far, amid reports of problems with the vaccination booking system, queue-jumping by local politicians & businesspeople
⚠️BREAKING—Singapore 🇸🇬 returning to lockdown mode for one month as #COVID19 cases rise, many #B16172 variants. Indoor dining suspended immediately. Travel bubble with HK🇭🇰 now unlikely. 31% of Singaporeans have >=1 shot, 22% fully vaccinated. Still surge. bloomberg.com/news/articles/…
2) 🇸🇬 is returning to the lockdown-like conditions it last imposed a year ago, banning dining-in and limiting gatherings to two people, as a rising number of untraceable virus infections pressures one of the most successful places in the world at Covid containment.
➡️YET STILL!
3) “A pattern of local unlinked community cases has emerged and is persisting,” the statement said. “We need to act decisively to contain these risks as any one leak could result in an uncontrolled resurgence of cases.”
Familiar? 80 years ago—one man (Wells) discovered viruses were airborne & UV light led to fewer sick kids. He was dismissed at the time—by chief epidemiologist of the CDC. The CDC panned the idea measles was airborne for many decades. They were dead wrong. wired.com/story/the-teen…
2) The distinction between droplet and airborne transmission has enormous consequences. To combat droplets, a leading precaution is to wash hands. To fight infectious aerosols, the air itself is the enemy. In hospitals, that means expensive isolation wards and N95 masks for all.
3) “The books @linseymarr flipped through drew the line between droplets & aerosols at 5 microns. A micron is a unit of measurement equal to one-millionth of a meter. By this definition, any infectious particle <5 microns in diameter is an aerosol; bigger is a droplet.”
FACT: Asymptomatic cases can still spread the coronavirus to someone vulnerable.
Vaccinate but still try to protect others who cannot / unable / unwilling (yes, let’s protect them too). #COVID19#empathy
2) But homes, schools, and businesses are not HBO TV show sets with unlimited testing budgets. How many transmissions will there be if we ditch masks too early? variety.com/2021/tv/news/b…
3) We also aren’t rich like the Yankees— 8th member, shortstop Gleyber Torres, is positive for #COVID19 in latest team outbreak. All 8 members are fully vaccinated, thus “breakthrough positives.” Too early to ditch masks. Think of others not vaccinated yet.forbes.com/sites/joshuaco…
Bill Maher has tested positive for #COVID19. HBO says he was “fully vaccinated”. HBO insists he “feels fine”, yet was forced to scrap Friday’s scheduled taping of @RealTimers. variety.com/2021/tv/news/b…
2) To be clear—I am absolutely for vaccinations. But homes, schools, and businesses are not HBO TV show sets with unlimited testing budgets. How many transmissions will there be if we ditch masks too early?
3) NY Yankees announced 8th member, shortstop Gleyber Torres, is positive for #COVID19 in latest team outbreak. All 8 members are fully vaccinated, thus “breakthrough positives.” Plus, Torres had Covid in Dec 2020, so also a reinfection. By @JoshuaPCohen1 forbes.com/sites/joshuaco…