
Una nueva variante del virus de la gripe despierta el temor a una temporada grave en EE. UU. ante la disminución de las tasas de vacunación
New Flu Variant Accelerates Concerns of a Potentially Severe U.S. Season A rapidly spreading flu strain known as subclade K is raising alarms among infectious disease researchers. Early indicators suggest the United States may be headed toward another severe influenza season. The variant has already contributed to unusually intense outbreaks











