Business Two new Omicron variants detected in the U.S. could spark another COVID wave. Research shows these people will fare best Published 2 years ago on 2 May 2022 By Terry Power BA.4, BA.5 variants sweeping South Africa have been detected in the U.S., with the potential to start another COVID wave | Fortune You need to enable JavaScript to view this site. Related Topics:antibodiesBA.1BA.2BA.3BA.4BA.5coronavirusCOVIDCOVID-19detectedfareimmune evasionincreased transmissibilityis ba.4 in the u.s.is ba.5 in the u.s.OmicronPeopleResearchSARS-CoV2Showssouth africaSparkvaccinevariantswave