Was Moderna’s Omicron-targeting bivalent vaccine approved in Canada on Thursday only tested on mice?
The short answer: no, according to Canadian health officials.
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Health Canada approves Moderna’s Omicron COVID booster; 780K doses arriving Friday
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The declaration comes after misinformation circulated online Thursday saying Moderna’s Omicron-targeted vaccine, approved by Health Canada, was only tested on mice, not humans.
“When Health Canada reviews any vaccine, we want to make sure that it meets standards for safety, efficacy and quality, and we’ve said that from the beginning of the pandemic,” said Dr. Supriya Sharma, chief medical advisor with Health Canada, during a news conference on Thursday.
“We wouldn’t authorize a vaccine unless we thought it meant those standards.”
Where does this connection come from?
Log onto Twitter and search “Moderna” and “mice” and you’ll see a slew of posts claiming Health Canada’s approval of the company’s Omicron-targeted vaccine was based on trial data only involving mice.
However, Health Canada states in its regulatory decision summary for the bivalent shot that it was tested in 437 humans over 18 years of age. The study included 814 individuals, both male and female, with 377 of them receiving Moderna’s original COVID-19 vaccine.
The immune responses were evaluated in these two groups against the original SARS-CoV-2 virus or against the Omicron BA.1 virus. Health Canada said the results presented indicate that the new bivalent vaccine induces similar responses to the original virus, and significantly higher responses to the Omicron BA.1 virus when compared to the original vaccine.
Furthermore, no new safety…
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