"We have a number of vaccines that have been demonstrated to be safe, efficacious and to be manufactured with high quality. And so, any of these vaccines are ones that are going to actually protect you. If you live in a country where there's more than one vaccine in the program, you should consider yourself lucky that you have access to the vaccine.

According to WHO’s Dr Katherine O’Brien, "on a daily basis, a weekly basis, a monthly basis, our immune systems are seeing all kinds of viruses that come at us in our noses, in our mouths, in our intestinal track on our hands. What's out there and readying itself for when it's exposed to something that could be causing disease.

"Vaccines, what they do is they are a part of the germ that our body can recognize and develop an immune response to so that the next time that we see the real germ, there are already fighters in our body to protect us against the infection." - Dr. Katherine O'Brien from WHO

Yes, we still need to continue taking precautions while we're still learning about what the vaccines can do. 

"Well, you can take the vaccine actually, once you've recovered from COVID. So waiting for a few weeks is recommended. You should have no symptoms at all and you should feel perfectly well when you take your vaccination. However, there are differences between countries.

According to WHO's Chief Scientist, Dr. Soumya Swaminathan, he says, "after getting COVID, people do get an immune response, but this varies from person to person and it depends on whether you had a mild infection or whether you had more severe infection.