Masking: Inward Protection

We have simply not done a good job of explaining why masks protect the wearer, and instead have focused predominantly on how they protect others. A well-fitted mask that filters efficiently also blocks viral particles from being inhaled. We have also received a lot of pushback on aerosols, with people adamant about droplets being primary

Let’s Talk About Boosters

I get a lot of questions on the difference between boosters/ third doses/ annual shots. The differences are mostly semantics, and can also overlap when it comes to Covid-19 vaccines. I also talk about why we may need boosters, what that means in terms of vaccine efficacy and how we need to be mindful about

NACI guidance on vaccine spacing

As a precaution, NACI previously recommended that Covid-19 vaccines should be given at least 28 days before and 14 days after other vaccines. However, after reviewing new data and extensive experience, NACI has determined that this is no longer necessary. NACI now recommends that: COVID-19 vaccines may be given at the same time as, or

Ontario Human Rights Commission (OHRC) policy statement on COVID-19 vaccine mandates and proof of vaccine certificates Sept 22, 2021 Here is what the OHRC says about vaccine certificates: While receiving a COVID-19 vaccine remains voluntary, the OHRC takes the position that mandating and requiring proof of vaccination to protect people at work or when receiving services is generally permissible

Pfizer Pediatric Data 5-11

Remember, this is data by press release. Full data has not yet been released. N=2268, 2/3rd received Pfizer vaccine Dose: 10mcg (vs 30mcg for 12+), every 3 weeks Data showed robust neutralizing antibodies, similar to that in the positive control group (people aged 16-25 who received 30mcg vaccine dose) Data on vaccine efficacy not yet

Immunity from Infection vs Vaccination

Recently a study from Israel showed that vaccinated people had a 5.96 fold increased risk for infections and a 7.13 fold increased risk for symptomatic disease compared to those who had previous Covid-19 infections and were unvaccinated. However, there are many limitations in this particular study, which I will outline below. Limitations: 1- There were