The latest strain of the COVID-19 virus, XEC, is circulating across the country. The new variant has been reported in at least 25 U.S. states, according to reports.
The latest strain of the COVID-19 virus, XEC, is circulating across the country. The new variant has been reported in at least 25 U.S. states, according to reports.
Dr. Curiel says vaccines in nasal form target the airway, where a respiratory virus enters the body. “A systemic injection, like MRNA, will augment antibodies in the blood, not so much in the lung.