dried food! Four new vaccines in Canada! If you can choose which one you should use?

As the Ministry of health of Canada announced on Friday that it has approved the use of the novel coronavirus vaccine developed by Johnson & Johnson, four different novel coronavirus vaccines have been approved in Canada

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In addition to the vaccine from Johnson & Johnson, the other three vaccines are Pfizer, Moderna and AstraZeneca

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Some may ask, what is the difference between these four vaccines and how effective they are

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Here are the details of the four vaccines: Johnson & Johnson vaccine: unlike Pfizer and Modena’s vaccines, Johnson & Johnson vaccine is a recombinant adenovirus vector vaccine

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Supriya Sharma, the chief medical adviser to the Federal Department of health, said the J & J vaccine requires only one dose and has been approved for use in people over the age of 18 and is effective for the elderly

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She pointed out that nearly 20% of the clinical trial participants were 65 years old or older, and there was no difference in safety and efficacy between the young group and the young group

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In addition, the vaccine is significantly easier to transport and store because it can be stored in a freezer between 2 and 8 degrees Celsius for at least three months without having to be stored in a freezer

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Novel coronavirus pneumonia, Johnson vaccine showed a total effectiveness of 66% in preventing moderate to severe novel coronavirus pneumonia in Sam

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The country has pre ordered 10 million doses of the vaccine, with an option to order up to 28 million doses

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AstraZeneca vaccine: two doses are required

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It was approved for use in China on February 26 this year

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Like Johnson & Johnson, the AstraZeneca vaccine is an adenovirus based vaccine that can be stored at normal refrigerator temperatures, which means it’s easier to transport and preserve

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A two dose clinical trial showed that the effective rate of the AstraZeneca vaccine was 62%

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The World Health Organization recommends an interval of 8 to 12 weeks for the vaccination

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Health Canada has approved the vaccine for adults aged 18 and over

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However, the Canadian National Advisory Council on vaccination (NaCI) currently does not recommend vaccination for people aged 65 or older

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The first two phases of the AstraZeneca vaccine trial did not include people aged 65 or older

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The country has purchased 20 million doses of AstraZeneca vaccine, enough to vaccinate 10 million people

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Modena vaccine: this vaccine was approved by the Ministry of health of Canada on December 23 last year

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It is also the second new vaccine approved by Canada

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Modena vaccine is not based on the traditional inactivation technology, but on the relatively new messenger RNA (mRNA) technology

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The mRNA vaccine itself does not contain antigens, but teaches our cells how to make a spike protein, or even a protein fragment, which triggers our body’s immune response

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If the real virus enters our bodies, this immune response that produces antibodies can protect us from infection

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Modena should have been given two doses every four weeks or 28 days, but many provinces are now extending that to as long as four months, as recommended by NaCI, because of a shortage of vaccines

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Clinical trials showed that the effective rate of Modena vaccine was 94.1%

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Modena vaccines can be stored in freezers between minus 15 and 25 degrees Celsius

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Compared with Pfizer vaccine, which was first approved in China, Modena vaccine is easier to transport and store

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The country has signed an agreement with Modena to purchase 40 million doses or choose to purchase 16 million more

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40 million doses of the vaccine are enough to vaccinate more than half of the country’s population, or 20 million people

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Pfizer vaccine: this vaccine was approved for use in China on December 9 last year, which is the first novel coronavirus vaccine approved for use in China

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The country has reached an agreement with the manufacturer to buy 40 million doses of Pfizer vaccine

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Just like the Modena vaccine, Pfizer vaccine also uses mRNA technology

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It needs to be vaccinated in two doses, and the manufacturer recommends that the interval be 3 weeks or 21 days

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Pfizer’s clinical trials are only for people 16 years old or older, which means that no one under 16 years old will be eligible for the vaccine until further studies are completed in the younger age group

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Among the four vaccines, Pfizer vaccine requires the highest temperature, needs ultra cold storage, and must be transported and stored at minus 70 ℃, which makes it difficult to transport the vaccine to remote areas

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However, on February 25, Pfizer biontech asked for a change to keep the vaccine between minus 15 and minus 25 degrees, instead of the previously approved storage conditions between minus 60 and minus 80 degrees

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In terms of effectiveness, Pfizer vaccine is the highest, reaching 95%

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The men in Afghanistan are forced to be quarantined! “I have the same documents as my colleagues! Why can he go straight home? ” The hotel costs $3458 a night! It’s a complete mess! Edmonton ID: Edmonton Explorer

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