Las vacunas contra la gripe no están proporcionando tanta protección como se esperaba contra la cepa de gripe que más circula, según un nuevo estudio, pero parece que las vacunas seguirán previniendo la enfermedad grave en las personas infectadas.
El reciente aumento de los casos de COVID-19 está provocando la reacción de varias universidades del país, algunas de las cuales están cancelando las ceremonias de graduación de invierno, mientras que otras están exigiendo que todos los estudiantes reciban una vacuna de refuerzo.
Investigaciones anteriores relacionaron las alteraciones de las hormonas del embarazo con un mayor riesgo de problemas como el retraso en el crecimiento del feto, el parto prematuro y el bajo peso al nacer.
Los máximos responsables de enfermedades infecciosas esperan un aumento de los casos de COVID-19 después de las fiestas y afirman que Omicron pronto tomará el relevo como cepa dominante en Estados Unidos
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.
Los CDC afirman que los estudiantes expuestos al coronavirus pueden seguir asistiendo a la escuela siempre que sigan dando negativo en las pruebas del virus en los días siguientes.
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