I am so thrilled that this incredible analysis is FINALLY out! And GUESS WHAT?! Masks work and they work well! 🧵1/5 Thank you: Trisha Greenhalgh Raina MacIntyre David N. Fisman M. Oliver Amanda Kvalsvig Mark Ungrin 𝙹𝚘𝚎 𝚅𝚒𝚙𝚘𝚗𝚍 [email protected] & others.

Metro #grocery flyer today. So that’s 0%, which I guess is technically is “up to 17%” savings. 🤦🏻‍♂️

Thanks PHPC_MSPC for the opportunity to present at the national conference today with Jennifer Hulme on the Cochrane Canada Health Canada and PHAC funded Post COVID-19 Condition Guidelines and Prevention Guideline.

You can listen to Jennifer Hulme personal story and experience here: cbc.ca/listen/live-ra… Or read about it here: uhn.ca/corporate/News…

A systematic review of airplane flights and Covid infections: duration of flight correlated with infection risk, long flights> 6 hours markedly increased risk (25X) and mask use blocked them mdpi.com/1660-4601/21/6… h/t Linsey Marr https://www.threads.net/@linseycmarr

What happens when you transfer IgG antibodies from people with #LongCovid to mice? biorxiv.org/content/10.110… The mice develop pronounced and persistent sensory hypersensitivity, reduced locomotor activity, related to human plasma proteomic signature

Deeply disappointed to learn that funding has been cancelled for the wastewater surveillance program in Ontario. This has been critical information not only for COVID-19, but other infectious disease threats (Influenza, RSV, MPox, Polio & now H5N1) in Ontario.

Novavax presented data showing that mice primed with a NVX XBB shot and boosted with a NVX JN.1 shot produced nAbs equally well against JN.1 and KP.3

Despite what airlines may say, the evidence points to what we know: airplanes meet criteria of a high-risk environment as enclosed vessels with a high density of occupants, often for prolonged periods of time, where aerosol particles are well-mixed.🧵 mdpi.com/1660-4601/21/6…

“The boycott, which began in May and is set to continue indefinitely, has since sparked a national conversation on how groceries in Canada are priced, and why a company like Loblaw continues to be profitable as more Canadians struggle to afford food.” bbc.com/news/articles/…

From the Star’s editorial board: Cutting wastewater surveillance now is a betrayal of everyone who sacrificed during the fight against COVID-19. thestar.com/opinion/editor…

Following a Covid shot, the more symptoms, heart rate and temperature response, the more long term neutralizing antibodies vs #SARSCoV2 induced. acpjournals.org/doi/10.7326/M2… Annals of Int Med Ethan Dutcher, MD, PhD and colleagues

APPLAUD U.S. FDA's decision to now go with KP.2 vaccine booster! fda.gov/vaccines-blood… A change of course thanks to Peter Marks. Novavax will have a JN.1 booster

The CDC has finally acknowledged that SARS-CoV-2 is not a typical “winter” respiratory virus, and COVID-19 is a threat that can surge throughout the year. Source: cdc.gov/ncird/whats-ne…

"COVID-19, but not other respiratory infections, rapidly increased cellular senescence and exhaustion in CD4 and CD8 T cells during early infection." academic.oup.com/jleukbio/advan…

Norovirus is a cool virus because it doesn't have a lipid envelope. That means it’s incredibly stable in the environment. So in addition to causing violent vomiting, diarrhea, & stomach cramping, it can be shed in stool for 2 weeks, AND hand sanitizers are ineffective. FUN! 1/

INFLUENZA REACHES EPIDEMIC THRESHOLD in New York—Influenza A (Unknown variety) positivity soars (yellow), while hospitalizations stand higher than past 3 years. The rise of unknown subtyping Flu A has led NY to issue new alert to subtype all Flu A immediately for bird flu.