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Although the results of the third round of corona vaccine trials have been questioned, observers are still focusing more on vaccines developed by the University of Oxford and AstraZeneca than on other vaccines.
According to a report published on CNN on Sunday, modern vaccines and Pfizer have been shown to be 94.5 to 95 percent effective on average. On the other hand, AstraZeneca, a UK-based pharmaceutical company, reported an average success of 70 percent in the final trials of its experimental Covid-19 vaccine in Brazil and the UK.
The average efficacy of the AstraZeneca vaccine is significantly lower than that of the Modern and Pfizer vaccines. However, observers believe that the AstraZeneca vaccine could be successful in additional trials next month. Answering the questions raised about the efficacy of the vaccine and approving the vaccine will facilitate the supply of the vaccine to poor countries.
The UK government took the first step in the vaccine approval process on Friday. On the same day, it was announced that the potential Oxford-AstraZeneca corona vaccine had been officially referred to the UK drug controller for evaluation.
Andrea Taylor, assistant program director at Duke’s Center for Global Health Innovation, told CNN: “The Pfizer vaccine is committed to delivering early doses in the European Union and the United States. In the United States, Moderna will provide the corona vaccine at least until the first half of 2021. So the Oxford-AstraZeneca vaccine is really good news for the world. “
AstraZeneca is committed to supplying millions of doses to low- and middle-income countries and vaccines on a non-profit basis.
This vaccine manufactured by the University of Oxford in England is cheaper than other vaccines. Furthermore, it is expected to be easier to transport and distribute to developing countries, as it does not need to be stored in sub-zero temperatures.
“I think it is the only vaccine that can be used to deliver low- and middle-income countries,” Azra Gani, chair of the department of infectious diseases at Imperial College London, told CNN.
The Oxford-AstraZeneca vaccine can be kept at a temperature of two to eight degrees Celsius for at least six months. Modern vaccines, on the other hand, can be stored at minus 20 degrees Celsius for 30 days. The Pfizer vaccine must be stored at minus 65 degrees Celsius and used within five days once it is brought to a high temperature.
“Many countries do not have the management necessary to preserve Pfizer and modern vaccines,” Gani said.
Meanwhile, AstraZeneca has committed to providing 300 million doses of its own vaccines to ensure equitable distribution in 92 developing countries through the Global Alliance for Vaccination and Immunization (GAVI) ‘Kovacs’ program.
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