Los resultados son similares a los de otros estudios sobre muestras de sangre de personas que han recibido la vacuna COVID-19 de Pfizers. La serie de dos inyecciones fue menos eficaz contra Omicron, pero una tercera inyección ayudó a aumentar los anticuerpos.
El panel de los CDC votó unánimemente a favor de las vacunas de Pfizer y Moderna después de escuchar una actualización de seguridad sobre los casos de trombosis con síndrome de trombocitopenia, una condición que causa grandes coágulos que agotan la sangre de las plaquetas, lo que resulta en un sangrado incontrolado.
La vacuna COVID-19 de Pfizer para niños de 2 a 5 años de edad fracasó en los ensayos clínicos, según informó la empresa el viernes, lo que supone un nuevo retraso en la aplicación de una vacuna a los niños en edad preescolar, justo cuando Omicron se impone en Estados Unidos.
Más de 8 de cada 10 médicos lectores que han participado en una nueva encuesta afirman estar totalmente vacunados contra la COVID-19 y haber recibido ya una vacuna de refuerzo o tener previsto hacerlo en breve.
Las autoridades sanitarias de Texas han anunciado la primera muerte del estado por COVID-19 relacionada con la variante Omicron. Puede ser la primera muerte por Omicron en los Estados Unidos
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