Thread by @CBCQueensPark

BREAKING: Ontario is pausing first doses of the AstraZeneca vaccine as a result of an increase in VITT blood clot incidents, and growing availability of other vaccines, says Dr. David Williams. #COVID19Ontario
cbc.ca/news/canada/to…

Data from the UK show people who did *not* have a VITT blood clot incident with their 1st dose of AstraZeneca have just a 1 in 1 million risk of an incident with the 2nd, says Dr Williams. There's no current plan for administering Ontario's remaining supply (50,000 doses) of AZ.

Ontario has received 901,800 doses of AstraZeneca, according to these federal stats canada.ca/en/public-heal… Since Ont has about 50,000 doses remaining that means 850,000 were administered. Among then, Ontario has seen 8 incidents of VITT blood clots.

News release says Ontario has administered 651,012 doses of the AstraZeneca vaccine and 202,873 doses of the COVISHIELD vaccine, which is identical to AZ but manufactured by the Serum Institute of India. #COVID19Ontario

Still not clear with what Ontario will do with the 50,000 AstraZeneca doses it has left. Nor what it will do when the next AZ shipment arrives: feds haven't given a clear timeline on the next shipment other than "in the coming weeks."

https://twitter.com/CBCQueensPark/status/1392210896362086409