Oxford university According to his studies The first dose of their vaccine, which was co-developed with AstraZeneca, provides 76% protection against coronavirus for 22 to 90 days after taking it. Moreover, the researchers found that prolonging the time between administration of the first and second doses increases the vaccine’s long-term effectiveness. According to the university, giving the second dose after 12 weeks increases the effectiveness of the vaccine to 82.4%.
In addition, the vaccine also appears to reduce the likelihood of transmitting the coronavirus, as the study showed a 67% reduction in the number of coronavirus cases between vaccines. However, the researchers say a larger sample will need to be tested to make a specific observation about virus transmission.
The British approved the Oxford / AstraZeneca vaccine for the Coronavirus again in December, and at that time, more and more people were shocked to see that the government had given a second dose of the vaccine in a 12-week delay due to a lack of supplies.
In the UK, approved vaccines include Pfizer / BioNTech and Moderna, but here manufacturers have not yet tested their vaccine for how long the second dose can be extended to maintain the effectiveness of the vaccine, so they continue to recommend that the second dose be given for up to 4 weeks after the dose First.
