This deserves the world's attention. #coronavirus https://t.co/Mtiulhdiso

California COVlD Update, Sep 20, 2025 The CDC has California with "Very High" levels of COVlD statewide for the 3rd week in a row. PMC estimates 1 in 25 actively infectious, barely down from last week's likely peak. 1/4🧵

“September seventeen For a girl I know it's Mother's Day Her son has gone alee And that's where he will stay Wind on the weathervane Tearing blue eyes sailor-mean As Falstaff sings a sorrowful refrain For a boy in Fiddler's Green”

CDC wastewater surveillance shows that over the past 2 weeks, COVlD levels in #Connecticut jumped from "Moderate" to "Very High."

As a health scientist, it's shocking that up to 3,300 Americans are expected to die (excess deaths) as a result of this week's infections.

Yesterday was the Intl Day of Clean Air for Blue Skies — a reminder that air pollution causes 700k+ deaths in Europe each year. It’s not just outside: clean indoor air matters too. Let’s make every breath count 🌍 👉 https://t.co/jJp8vioJen #CleanAir #UKSchools #HealthEquity

Check out these amazing kids teaching 🔥🚒🧑‍🚒fire fighters🔥🚒🧑‍🚒 how to make a Corsi-Rosenthal Box to clean their indoor air. Fire fighters are exposed to horrendous amounts of particulate matter. The students captured 102 pgs of data to analyze! https://t.co/PWpjDqgNil

That mystery virus you had — and passed on to 100 others while contagious for 10-14 days — won’t just cause a week of illness. Statistically, about half of them will face Long Covid after repeat infections (3/4 of the US already have a chronic condition), and about 10 will die

Poor indoor air quality (IAQ) impacts kids and communities across our nation. Today, @RepBrianFitz and I introduced the bipartisan Indoor Air Quality and Healthy Schools Act to address this threat, improve IAQ nationwide, and protect public health. https://t.co/YhKfsXCquO

BREAKING: COVlD surges across the U.S. 20 states & D.C. are in High or Very High transmission. Only 1 state is Very Low. PMC estimates the U.S. will top 1 million new daily infections tomorrow. Full report on Monday.

We honour the memory of legendary #Oneida actor, #GrahamGreene, who opened doors for Indigenous storytellers in film and television. His powerful performances, including his Oscar-nominated role in "Dances with Wolves," brought an authentic Indigenous voice to screens worldwide.

Hero. If you do not know about Terry Fox, it’s worth the time to learn.

A nasal spray reduced the risk of Covid infections in a double blind, placebo controlled randomized trial https://t.co/OpjuNu72Wo

💥NEW RESOURCE💥 We're excited to share a new BIG BUILD GUIDE to help those who are building a large quantity of CR Boxes. It's an amazing combination of: - tips - printable instructions - editable files Check it out: https://t.co/NxubSZJwJS

@CorsIAQ It’s still kicking too! While these commercial Levoit products are dying after 5 years. Look at that sensor!!

Transmission is increasing in 31 states, declining in 4, and steady in the rest. These data are a week old, of course. Still on pace for a national peak around Sept 6, *if* historical transmission trends hold.

CR Box in the wild.

Nice anniversary post, @michael_hoerger !

A mega thread on the ultimate DIY air filter known as the Corsi/Rosenthal Box (@CorsIAQ/ @JimRosenthal4). Take it into work. Donate a couple to your school classroom if they'll let you. Illustrations beautifully done by @ughberta, discovered through @kprather88.

Thanks @EPA for including us in the team of Air Cleaning Allies super heroes! Check out the @epa's new Activity Book for kids to learn about the importance of clean indoor air and ways to improve IAQ. Download it here: https://t.co/fL3ZKjuwkF

Tune in to this 11-minute interview with Dr. Richard Corsi on Canadian radio. How a DIY air purifier can help deal with wildfire smoke. @CorsIAQ Affordability - Accessibility - Efficiency They continue to be our driving values. https://t.co/6cfvihJs1Y Pic of the OG.