“It remains a variant of concern because we think it is likely more transmissible, more contagious than delta based on the pattern that we were seeing in South Africa,” Arwady said. “We may see more breakthrough infections in people who are vaccinated, and we may see more repeat infections in people who previously had COVID. We don’t have any real evidence at this point that it’s making people sicker, but they’re still doing the work to figure that out.”
