How long the immunity will last? Is my main question. And people are already too optimistic about its effectiveness. And there's a forseeable risk of public moving away from social restrictions. It'll be extremely dangerous !

How long the immunity will last? Is my main question. And people are already too optimistic about its effectiveness. And there's a forseeable risk of public moving away from social restrictions. It'll be extremely dangerous !

To build host immunity against covid 19 is a corner stone for immunoprophylaxis and break the chain of transmission in the ongoing trans global dissemination of the pandemic.

Hopefully the efforts for producing an effective vaccine will be successful soon to reduce the sufferings people of the global community, Insha Allah.

Unfortunately, I am not participating in research on a vaccine against SARS-CoV-2 and like other specialists, I have inquiries.

Without a doubt, vaccine(s) against SARS-CoV-2 produced in such a short time are a great achievement. However, it would be worth publishing data on the age and burden of disease of those who participated in III phase clinical study. There is also no information on the duration of the vaccine response.

Thank you all; mauro, Anuradha, Lilian, Mohammed and Anna for your contributed and informative answers.

In my opinion, how long will the period of immunity against the virus last after administering it, because studies have shown that the antibodies that are generated in the infected people decrease or end after a period of recovery? And is it possible for the virus to develop and then a new strain will emerge, for which this vaccine is not effective against it, and the method of preserving the vaccine and administering it requires caution and adherence to instructions, is it that in our distant and developing countries these instructions and recommendations will be adhered to during the storage of the vaccine? Give it to be effective.