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Dr. Theresa Tam Profile picture
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13 Nov, 5 tweets, 2 min read
1/5 Layering #COVID19 protections is best! Evidence on aerosol spread of the #SARSCoV2 virus shows that expelled virus particles can spread over distances and linger in fine aerosols for periods of time, much like second-hand smoke. canada.ca/en/public-heal…
2/5 Likewise, those in close proximity to the infected person can inhale more aerosols. This is why opening a window can help reduce the risk and why wearing a well-fitted and well-constructed mask is so important. #GoodVentilation #MaskFit
3/ 5 Similar to how second-hand smoke can leave a room when a door or window is opened, improved ventilation can remove virus particles from the air.
4/5 And wearing a well-fitted/well-constructed mask when you’re spending time in indoor public spaces can help reduce virus inhalation and spread between people, particularly if ventilation is not optimal.
5/5 There are many types of masks, but those that fit with a snug seal on your face and are made with layers of materials that can filter fine virus particles are best for preventing/reducing infectious respiratory particles you may inhale. canada.ca/en/public-heal…

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More from @CPHO_Canada

Dr. Theresa Tam Profile picture
12 Nov
1/4 Since the outset of the pandemic, we’ve learned a lot about the #SARSCoV2 virus that causes #COVID19. Importantly, we’ve learned how the virus can linger in fine aerosols and remain suspended in the air we breathe. canada.ca/en/public-heal…
2/4 Much like expelled smoke lingers in poorly ventilated spaces, #SARSCoV2 virus can remain suspended in the air, with those in close proximity to the infected person inhaling more aerosols, especially in indoor and poorly ventilated spaces.
3/4 This is why wearing a well-fitted and well-constructed mask is so important when you’re spending time in indoor public or private spaces with others outside of your immediate household, particularly if ventilation is not optimal ➡️canada.ca/en/public-heal…
Read 4 tweets
Dr. Theresa Tam Profile picture
3 Nov
1/4 Q: I’m planning a pregnancy, should I get the #COVID19 vaccine? Read this thread for the answer⬇️ Image
2/4 Yes! It’s recommended that you get vaccinated with a mRNA #COVID19Vaccine if you’re planning a pregnancy. Millions of mRNA vaccinations have been administered in Canada and around the world.
3/4 Data from ongoing surveillance shows there is no evidence that COVID-19 vaccines cause fertility problems. canada.ca/en/public-heal…
Read 4 tweets
Dr. Theresa Tam Profile picture
15 Apr
1/4 My statement highlights the 100th anniversary of the discovery of #insulin @UofT, reminding us of our great achievements and continuing challenges as the global public health burden of diabetes increases, exacerbated by inequities. canada.ca/en/public-heal…
2/4 Those who experience social and economic inequities face a higher risk of developing diabetes and other chronic diseases, which puts them at greater risk of severe illness from #COVID19 in Canada and worldwide.
3/4 Equity matters - we must do more to support communities disproportionately affected by #ChronicDiseases & #COVID19. It is also important for individuals to reduce their risk by being physically active, eating well, and not smoking.
Read 4 tweets
Dr. Theresa Tam Profile picture
12 Apr
1/4 The #PHAC-@McMasterU longer-range modelling forecast for March 26, 2021 continues to play out in the data we are seeing now. Current surveillance data (red dots up to April 9th) are plotting along the strong resurgence trajectory. Image
2/4 The March 26th forecast accounted for spread of #VariantsOfConcern, warning that stronger public health measures and strict adherence with individual precautions were needed to counter more transmissible #COVD19 variants.
3/4 The current trajectory reaffirms that measures in place two weeks ago were not stringent enough to prevent the strong resurgence we are seeing now. #COVID19Vaccines are starting to help, but our efforts are crucial as they roll out
Read 4 tweets
Dr. Theresa Tam Profile picture
28 Feb
1/4 #COVID19 key concerns in 🇨🇦 : my #SundayThoughts are on what we can do today to help ensure our healthier future. Maintaining health visits is one of the most important things we can do for our wellbeing now and into the future.
canada.ca/en/public-heal…
2/4 There are many impacts from a health emergency on the scale & duration of #COVID19. Our collective efforts have sustained & protected our health system. Let’s make sure we are also protecting & supporting our overall wellbeing.
3/4 That means keeping up with physical and mental wellness and prevention visits and seeking timely care for any urgent medical concerns. These medical visits are essential outings – please do not delay!
Read 4 tweets
Dr. Theresa Tam Profile picture
21 Dec 20
1/4 #PHAC is conducting an analysis of Canadian cases of #COVID19 to identify if the genetic variant from the 🇬🇧 has been observed in 🇨🇦.
2/4 Genetic variations of the SARS-CoV-2 virus that causes #COVID19 have been observed globally this year and are not unexpected.
3/4 The observation that this strain has been associated with a resurgence in the 🇬🇧 raises the possibility of increased transmissibility. More evidence will be needed to confirm this observation.
Read 4 tweets

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