How long does it take for the Covid vaccines to take effect?

The whole world has been suffering from the ravages of the Coronavirus pandemic for more than a year, however, we are already starting to see the light at the end of the tunnel as the COVID-19 vaccination progresses.

Health authorities stressed that people who have already been vaccinated should not relax protection measures, such as washing hands, using face masks, and sanitary distance. This is because the vaccine takes a certain time to take effect.

How long does it take for the Covid vaccines to take effect?

There is no set number of days, as this depends on the vaccine that is applied to each person.

Against this background, the Spanish Ministry of Health has embarked on a review of Pfizer-BioNTech vaccines, from modern, AstraZeneca and Janssen, aiming to find the moment when the highest protection is achieved. However, they found that the picture changes depending on which injection is applied.

In the case of the Pfizer-BioNTech vaccine, it is administered in two doses. After receiving the first, you must wait 21 days to receive the second. The highest protection comes next Seven days after the second injection.

This mRNA vaccine needs to be kept at very low temperatures. According to information provided by the health authorities, it is 62% effective in preventing serious diseases after the first application and up to 92% with the second injection.

In the case of Moderna, immunogenicity is established 14 days after the second dose. Between the first and second injection, 28 days must pass.

This vaccine is also mRNA and needs to be cooled at -20 degrees. The drug company reports that trials of the application are already being conducted in children under 12 years of age and that it is also effective for virus variants that have been identified in South Africa and the United Kingdom.

AstraZeneca injection is also given in two doses. After the first vaccine, you must wait between 10 and 12 weeks to apply the second vaccine. After that, an additional 28 days must pass for the highest protection.

This is a viral vector vaccine that is transmitted inside a harmless virus that is not a coronavirus, the genetic information that the body needs to produce antibodies to SARS-CoV-2.

In the case of Janssen, from Johnson & Johnson, the vaccine protects from day 14 of its application, since it’s a single dose. This vaccine is a viral vector and needs to be stored at -25 degrees. Its effectiveness is 67%.

Now you know … after getting the vaccine, one or two doses, it’s best to keep wearing masks, keep washing hands frequently, keep a healthy distance and limit the number of people we interact with.