All of us are now either looking forward to receiving our Covid-19 Vaccine, or have been fortunate enough to have recently been given our first or second dose. Upon departure from the vaccine clinic, you were most likely reminded to maintain social distancing and facemask wearing for the foreseeable future. But why do we still need to do these things even after we are vaccinated? Well, there are several reasons: firstly, it takes several days to weeks for the immune system to build a robust response to the Vaccine, and during this time, the individual has limited or no protection from infection; secondly, the Vaccine works to a different degree for every one of us, and so our level of protection, and the duration of that protection is not well understood right now. To complicate things more, it is still unclear if vaccination prevents an individual from spreading the virus, even if they do not display any symptoms. With so many unknowns, it makes sense that we should continue to take these safety precautions for the foreseeable future.