What is the new COVID-19 variant BA.2, and will it cause another wave of infections in the US?
India TV NewsHighlights A new omicron subvariant of COVID-19, BA.2, is quickly becoming predominant source of cases in US. A new omicron subvariant of the virus that causes COVID-19, BA.2, is quickly becoming the predominant source of infections amid rising cases around the world. This is why some scientists predict that BA.2 will be less likely to cause another major wave However, while the natural immunity gained after COVID-19 infection may provide strong protection against reinfection from earlier variants, it weakens against omicron. A recent preliminary study that has not yet been peer reviewed of over 1 million individuals in Qatar suggests that two doses of either the Pfizer–BioNTech or Moderna COVID-19 vaccines protect against symptomatic infection from BA.1 and BA.2 for several months before waning to around 10%.