Omicron subvariant XBB.1.5 should be the focus of Covid shots this autumn.
> XBB.1.5 strain of Covid CFOTO | Future Publishing | Getty Images The U.S. Food and Drug Administration (FDA) has released a recommendation for Covid vaccine manufacturers to develop single-strain shots for the fall that specifically target the omicron subvariant XBB.1.5. This strain is currently the dominant variant of the virus nationwide. In their official …