The Delta variant of the coronavirus overwhelmingly remains the dominant strain in the United States, but the Lambda variant has started getting attention in recent days. Like the Delta variant, Lambda is highly infectious and thought to be more resistant to vaccines than the original version of the virus. Though much remains unknown about the strain, there have been some alarming characteristics detected by researchers. At the moment, the Lambda variant has been mainly spreading through South America after first being identified in Peru in August 2020, but cases have been seen in Texas and South Carolina. Fewer than 700...