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I think it is foolish for the government to fool around with a vaccine that has not been properly tested - in terms of how other medications and vaccines are tested. I read that one dose provides 80% protection, two doses provide 95% protection.
Because there is a shortage, governments are modifying scientific recommendations regarding vaccine delivery. I wonder what the consequences will be, and in particular I wonder whether it will create a situation where the virus has just enough room to mutate and beat the vaccine.
"Canada's national panel of vaccine experts says the second COVID-19 vaccine dose can be delayed briefly in order to quickly get first doses to more people.
The National Advisory Committee on Immunization says every effort should be made to follow the 21-day and 28-day dosing schedules recommended for the two vaccines approved in Canada to date.
But as the pandemic heats up, and as vaccine supplies trickle in slowly, the panel also says that delaying the second dose for up to six weeks — instead of three or four — could quickly give more people at least some protection against COVID-19.
...
Alan Bernstein of Canada's COVID-19 vaccine task force said he is opposed to delaying the second dose.
"It would create a situation where people think they're immune, but they're not," he said. "If we start tampering with those regimes, we really are experimenting on human subjects, and we need to get informed consent."
If provinces change shot schedules, it might also affect the delivery of future doses. Procurement Minister Anita Anand said Tuesday she'll consult with the companies. "
https://www.cbc.ca/news/politics/vaccine-panel-ok-to-delay-second-dose-1.5871677
Because there is a shortage, governments are modifying scientific recommendations regarding vaccine delivery. I wonder what the consequences will be, and in particular I wonder whether it will create a situation where the virus has just enough room to mutate and beat the vaccine.
"Canada's national panel of vaccine experts says the second COVID-19 vaccine dose can be delayed briefly in order to quickly get first doses to more people.
The National Advisory Committee on Immunization says every effort should be made to follow the 21-day and 28-day dosing schedules recommended for the two vaccines approved in Canada to date.
But as the pandemic heats up, and as vaccine supplies trickle in slowly, the panel also says that delaying the second dose for up to six weeks — instead of three or four — could quickly give more people at least some protection against COVID-19.
...
Alan Bernstein of Canada's COVID-19 vaccine task force said he is opposed to delaying the second dose.
"It would create a situation where people think they're immune, but they're not," he said. "If we start tampering with those regimes, we really are experimenting on human subjects, and we need to get informed consent."
If provinces change shot schedules, it might also affect the delivery of future doses. Procurement Minister Anita Anand said Tuesday she'll consult with the companies. "