There are two vaccine made by two different companies: one by Pfizer and BioNTech.<br /> The other by Moderna and the National Institute of Allergy and Infectious Disease.<br />Pfizer claims that their vaccine is more than 90% effective, Moderna reports that theirs is 95% effective.<br />Now both companies are seeking authorization to commercialize their vaccine.<br />FDA regulators will evaluate the effectiveness of both vaccine and then will give their approval accordingly.<br />On December, one or both vaccines might be authorized.<br />Ideally vaccines will be available by the end of 2020.<br />Some people may qualify for earlier access such as health-care workers or the elderly.<br />No serious safety concerns have been identified so far but this will be closely watched after the vaccine will be used.<br />Even after the vaccine released, social distancing has to be applied in order to limit virus spreading.<br />Even if vaccines appear to be effective, according to scientists the return to a normal life can't be expected before several months.
