A rare rodent-borne virus, identified as hantavirus, has been linked to the recent deaths of three individuals in Mammoth Lakes, California. This outbreak has raised alarms among health officials as it follows the tragic death of Betsy Arakawa, wife of actor Gene Hackman, who also succumbed to this virus. Authorities are urging residents to exercise caution as investigations into the virus continue and health alerts have been issued for the area.