The subvariant, now dominant among new cases in the United States, has been detected in Ohio and Greater Cleveland.
In a region including Ohio and five nearby states, BA.2 accounts for about half of infections, according to federal data. The region includes Ohio, Illinois, Indiana, Michigan, Minnesota and Wisconsin.
There is some cross-immunity between the two variants, and vaccines are an effective way to protect against severe COVID-19 caused by either variant, Vanderhoff said. “It looks like we’re probably going to see an increased number of cases, if you put all those things together,” saidA mitigating factor is that people will move outdoors — where the coronavirus is less transmissible — as the weather warms. When fall returns, it might bring with it a BA.2-fueled surge, Wyllie said.
“I wouldn’t say that we’ve done it too soon,” Rush said. “I think that now that we have all the tools in place, it’s really a matter of being able to quickly respond as the situation evolves.” If a BA.2 spike in cases happens, having more people boosted could help keep hospitalizations and deaths under control. Some people, in trying to decide whether to get the shot, are weighing whether to get it now and risk having immunity wane before another wave possibly hits.
Think of the COVID-19 virus as a tree. Variants are branches that have slight differences in the way that they grow and change over time. Those changes create different variants and subvariants of the original virus.The new subvariant is about 30% more transmissible than BA.1, for those who are unvaccinated, partially vaccinated and fully vaccinated.So far, BA.
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