Variant or ‘Scariant’: When to Worry About Covid Virus Strains

Plus, the most important way to prevent more variants from emerging

Image: Andriy Onufriyenko/Getty Images

Although the word “mutation” often conjures frightening associations, such as three-headed fish or The Andromeda Strain, in reality, mutations are simply changes that arise in DNA or RNA. Reproduction is one opportunity for these changes to…