Copyright © 2021 Albuquerque Journal Navajo Nation epidemiologists have confirmed a case of the B.1.429 COVID-19 variant on the reservation in the Chinle, Arizona, area. The virus strain was first discovered in California and has become prevalent in new COVID-19 infections in Arizona and Nevada. The Centers for Disease Control and Prevention has listed the mutation as a “variant of concern.” ................................................................ “We know this is capable of spreading rapidly and efficiently,” said Dr. Laura Hammitt, infectious disease programs director at th...