Even as Covid-19 infections and deaths decrease globally, the World Health Organization warns that “the pandemic is not over.” The Biden Administration seems to feel the same. Earlier this month, the federal government extended the Covid-19 public health emergency again.
Why the concern? As WHO Director Tedros Ghebreyesus stated, “A new and even more dangerous variant can emerge any time and vast numbers of people remain unprotected.” Covid’s BA.4 and BA.5 sub-variants could be an example.
According to the Centers for Disease Control, BA. 5 currently composes 80 percent of new Covid-19 cases in the US. Although most research on these variants
