(Background) US Secretary of Health and Human Services Robert F. Kennedy Jr. speaks before the signing an executive order restarting the Presidential Fitness Test in public schools in the Roosevelt Room of the White House in Washington, DC, on July 31, 2025. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images) / (R) MELBOURNE, AUSTRALIA - JULY 11: A vile of a Pfizer-BioNTech COVID-19 mRNA vaccine is seen at Exhibition Pharmacy on July 11, 2022 in Melbourne, Australia. More Australians are now eligible to receive a fourth dose of a COVID-19 vaccine, after the Australian Technical Advisory Group on Immunisation (ATAGI) approved people aged 30 and above can access additional booster shots from Monday 11 July. While over 30s are now eligible for an additional dose if they choose, health authorities are strongly urging people over 50 to get the fourth COVID-19 vaccine booster and for people to wear masks indoors in public as coronavirus infections continue driven by Omicron subvariants. (Photo by Asanka Ratnayake/Getty Images)

Estados Unidos elimina gradualmente los contratos de vacunas de ARN Mensajero y cuestiona su seguridad

El Departamento de Salud y Servicios Humanos de Estados Unidos (HHS, por sus siglas en inglés) anunció el inicio de una “descontinuación coordinada” de sus esfuerzos de desarrollo de vacunas de ARN mensajero (ARNm), bajo la Autoridad de Investigación y Desarrollo Biomédico Avanzado (BARDA, por sus siglas en inglés).

Read More Estados Unidos elimina gradualmente los contratos de vacunas de ARN Mensajero y cuestiona su seguridad