A second vaccination 3 weeks after the first one is necessary for your immune system to develop the highest degree of protection against SARS-CoV-2 possible.
After the first vaccination, your immune system begins to build up defenses against SARS-CoV-2 infection. Please schedule your second vaccination appointment in combination with the first appointment to make sure that the second vaccination can take place 3 weeks later. Your doctor can provide you with more information.
Vaccination with COMIRNATY® is expected to provide the best possible protection starting 7 days after the second dose. This time frame is because the immunological processes in your body need time to build up an immune response. That is why you need to keep following the coronavirus safety rules even after each vaccination.