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Posted On: 23 March 2021 09:50 am

COVID-19 vaccine: Maximum protection develops 10-14 days after second dose

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Extensive clinical trials on the Pfizer/BioNTech and Moderna vaccines show both vaccines are around 95 percent effective at preventing symptomatic COVID-19 infection after two doses, with maximum protection developing around 10-14 days after the second dose. This was stated by Dr. Muna Al Maslamani, Medical Director of the Communicable Disease Center at Hamad Medical Corporation (HMC) said in a post on Twitter.

"This means the vaccines are very effective at preventing people from becoming sick due to the virus. However, people can still contract COVID-19 and have the virus with no symptoms."

"This is a very high and encouraging efficacy level but it is important to note that no vaccine is 100 percent effective."

"As the vaccines are 95 percent effective, there may still be a very small number of people, around 5 percent, who receive the vaccine and still become sick due to COVID-19."

"Until more is known about the ability of vaccines to prevent the spread of the virus, it is important that vaccinated people follow all preventive measures."

Source: Hamad Medical Corporation