Original title: The vaccine is not enough, Canadian researchers propose: only one dose of
[Global Network Report Reporter Bian Zihao] According to the "Russia Today" (RT) report on the 18th, Canadian researchers called for the postponement of the second dose of Pfizer's new crown vaccine, on the grounds that one dose can provide "short-term protection", and postponement of vaccination can allow more people to get vaccinated.
The above ideas were published in the New England Journal of Medicine on the 17th in the form of an open letter. The letter reads: "Given the current shortage of vaccines, postponing the second dose of vaccine is related to national security."
It is reported that Canadian researchers concluded after reviewing the relevant data of the Pfizer vaccine that although the protective efficacy of the two doses of the new crown vaccine is 94.8%, a single dose still has 92.6% efficacy, and the difference between the two is almost negligible. Therefore, they believe that the government should postpone the second dose of the vaccine, so that more people can be vaccinated. However, the researchers also admitted that the dose of vaccination may affect the time of immunization to the new coronavirus.
However, the researchers' suggestions do not seem to be approved by Pfizer . According to reports, Pfizer responded to this, reminding us not to take this method of reducing one dose, because the practice of taking only a single dose will require thorough evaluation and further research. Pfizer believes that the plan for vaccination should be decided by the health department. However, the company believes that the health department should monitor different vaccination programs to ensure that the vaccine is maximized for protection. ”
According to the Canadian Global News Network, Howard Njoo, the country’s deputy chief public health officer, said on the 18th that the practice of changing the vaccination plan is "under discussion." He said: "Where is the balance between using one dose (vaccine) to provide protection to more people and giving fewer people two doses as planned? "
report mentioned that in December last year, former British Prime Minister Tony Blair said that the original vaccination plan should be changed to allow more people to receive the first dose of the new crown vaccine. Some scientists support this, while others object that this is "too risky" and lacks sufficient data support.
In addition to the "only one dose", Monsef Slavi, chief consultant of the US vaccine and drug research program "Warspeed Operation", proposed another method on January 3 - still be vaccinated twice, but each dose is halved. Slavi said at the time: "We know that for the Moderna vaccine, providing people between the ages of 18 and 55 with two doses (vaccination), half a dose each, which means we can use the vaccine dose we now have to achieve the goal of double the number of people. ”
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