Coronavirus Notebook: New EMA Review To Contextualize Blood Clot Risk From AZ Jab, EU Gets Earlier Access To More Pfizer Vaccines
Denmark has stopped using the AstraZeneca vaccine completely, while the Canadian regulator is not recommending restrictions in any specific populations. Can a new EMA review provide better context to guide the vaccine’s use in different age groups and gender?
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Potentially fatal blood clots seen in AZ and J&J’s COVID-19 vaccine could be common to all adenovirus vector vaccines – but Russia and China developers are dismissing a possible link.
CDC’s ACIP likely to discuss criteria needed to lift pause and whether to recommend that the vaccine not be used in specific groups. Former CBER official says FDA and CDC will look at reports for other adenovirus vector vaccines, including J&J’s Ebola vaccine, and the biological plausibility that cases of rare blood clots are directly associated with the vaccine.
The French authorities believe that the “heterologous prime-boost” approach is justified in the case of people aged under 55 years who are due to receive their second dose of the AZ COVID-19 vaccine.