8 Comments

Really interesting that there's apparently lower myocarditis risk after the third dose than after the second. A function of the 6-month dosing interval? Or just due to those who experienced it with the second dose, perhaps being predisposed, not getting the third? Worth investigating.

Expand full comment

Thank you! So disappointed they wouldn’t even discuss 16-17 year olds. Many work in risky situations or live with high risk people. Many have had Pfizer for 8 months! Sounds like they won’t even let their doctors decide.

Expand full comment
founding

Thank you for posting this! I too am frustrated that they made the boosters 18+ rather than 16+ as was the age range for the original trial, the full FDA approval, and the booster trials used to support the booster application (as per the ACIP slides from today). In israel they are boosting 12+ and they see lower risk of myocarditis with a third shot than with a second. For males ages 16-19, the risk with a 3rd shot is 1/3 the risk from the 2nd shot. (2nd to last slide in slide show below):

https://www.gov.il/BlobFolder/reports/vaccine-efficacy-safety-follow-up-committee/he/files_publications_corona_booster-il-de-28102021.pdf

Expand full comment

What about for people who have had a possibly worrying side effect from the second Pfizer dose? Had Covid in Jan. Received 2nd Pfizer dose in April. One week later developed petechiae on my hips and inner thighs. Saw a nurse practitioner who said it was very likely caused by vaccine and she had seen it in other patients but she couldn’t answer whether that meant a 3rd dose was risky. Does that mean I should consider getting J & J? Can you shed any light on this- as in is there risk of more severe side effect if I get a 3rd?

Expand full comment

So... I had shared this post on my FB page (thank you for it, BTW!), and a family member (who has been fully vaxxed but not boosted) flipped out on me and told me to stop sharing this kind of info because "there's no proof yet" and only the immunocompromised need boosters. How on Earth do I respond to that?

Expand full comment

Canada just approved the Pfizer vaccine for children 5-11 with the second dose being 8 weeks after the first. By delaying the second dose, does Canada hope to elicit a more robust immune response and eliminate the need and risk of a pediatric booster? Would it be wise to delay our children's second dose?

Expand full comment