Jamie Onofrio Franceschini, 11, watches as RN Rosemary Lantigua prepares a syringe with her first dose of the Pfizer COVID-19 vaccine for children five to 12 years at The Children's Hospital at Montefiore, Nov. 3, 2021. PHOTO: MARY ALTAFFER, ASSOCIATED PRESS
United States

Vacunación de los niños ayudaría a prevenir las variantes del COVID-19, afirman científicos

16 January 2020. Ministerial and Forum on Migration and Integration. Angel Gurría, OECD Secretary-General. OECD Headquarters, Paris, France. Photo: OECD/Andrew Wheeler
Latin America

Costa Rica becomes the fourth Latin American country to be accepted by the OECD

A couple wear protective face masks on the street after the governor of the northern Mexican state of Coahuila said on Saturday that a new case of coronavirus had been confirmed, in Mexico City, Mexico February 29, 2020. REUTERS/Carlos Jasso
World

¿Son eficaces las mascarillas fabricadas en casa? No son infalibles, pero es mejor que nada

Árboles de gran altura en un bosque virgen, vistos desde abajo - Photo: Elisabeth Brinch Sand
World

Bosques vírgenes desaparecen aceleradamente en el mundo, advierten expertos

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