Could be goodFrom what we're told....this may play out rather superbly "COVID-19 vaccines modified to work against circulating virus variants should have clinical immunogenicity studies supporting their effectiveness, and ensure they work not only against the variant strain, but the initial strain, the FDA said inmodified guidanceon Monday. Manufacturers will also need to conduct booster studies, where the modified vaccine is given to those already vaccinated with the initial vaccine, to measure immune response in those individuals as well." https://www.medpagetoday.com/infectiousdisease/covid19/91315?xid=nl_covidupdate_2021-02-23&eun=g1047875d0r&utm_source=Sailthru&utm_medium=email&utm_campaign=DailyUpdate_022321&utm_term=NL_Gen_Int_Daily_News_Update