RIO DE JANEIRO, BRAZIL - The director general of the Pan American Health Organization (PAHO), Carissa Etienne, said ongoing studies are providing growing evidence that some of the novel coronavirus strains, such as the one first detected in Manaus, northern Brazil, have a higher transmission capacity than the virus' original strain.
According to PAHO's Incident Manager Sylvain Aldighieri, three worrying strains have been detected in at least 20 countries in the Americas. After reporting that approximately 1.6 million Covid-19 cases were registered in the region last week, roughly half of the global cases in the period, Etienne said . . .