(Arjun Walia) Dr. Ozlem Tureci, co-founder and CMO of BioNTech, the company that developed a COVID vaccine with Pfizer told CNBC that she expects people will need a third shot of its two-dose COVID-19 vaccine because the immunity given from the previous two shots will wane. She also said that she expects people will need to be vaccinated against the coronavirus every single year, similar to the seasonal flu. She states that “scientists expect vaccine induced immunity to decrease over time.” No specific information was given on the length of the immunity the vaccines already provide, if any, and given the fact that she is suggesting that people will need a third shot, as well as a shot every year, it’s safe to assume that the answer is not as long as people had hoped.