The pharmaceutical company has already begun the trials, it is believed that it will soon.
Pfizer CEO Albert Bourla told Fox News on Tuesday that he believed it was “likely” a vaccine-resistant.
The UNWTO recommended accelerating vaccination as a measure to reactivate tourism to reach pre-pandemic levels.
A lab experiment showed Johnson & Johnson’s single-dose vaccine produced a weaker antibody response against the Delta variant when.
The Gamma variant is twice as transmittable as the original. Mèrida, Yucatàn, (July 16, 2021).-.