La directora de inteligencia nacional de Estados Unidos, Avril Haines, presenta al presidente Joe Biden en una visita a su departamento en McLean, Virginia, el 27 de julio del 2021. (AP Foto/Susan Walsh)
World

Agencias de Inteligencia de Estados Unidos no podrán determinar el origen de la pandemia

President Joe Biden takes questions from reporters as he speaks about the American Rescue Plan, in the State Dining Room of the White House, Wednesday, May 5, 2021, in Washington. (AP Photo/Evan Vucci)
Politics

Biden acusa a China de retener “información crucial” sobre los orígenes de la COVID-19

In this photo released by China’s Xinhua News Agency, workers in protective suits take a swab for a coronavirus test in Shenyang in northeastern China’s Liaoning Province, Monday, Jan. 11, 2021. (Yao Jianfeng/Xinhua via AP)
Science

Estados Unidos descarta que el coronavirus fuera diseñado como un arma biológica

A child holds his protective face mask to help curb the spread of the new coronavirus as he visits to the capital's popular tourist spot of Temple of Heaven in Beijing, Sunday, May 10, 2020. (AP Photo/Andy Wong)
World

China cierra las puertas de su territorio a nuevas investigaciones sobre el origen del COVID-19

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