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China's export controls on gallium and germanium, two niche materials key to making semiconductors and other high-tech products, are set to take effect on Tuesday.
La farmacéutica descartó la idea de que su inyección necesite complementarse con otra vacuna. Por Bloomberg Algunas personas que recibieron la vacuna Johnson & Johnson COVID-19 en Estados Unidos están buscando dosis adicionales de una vacuna de ARN mensajero, por temor a que su inoculación inicial no las proteja del virus. La demanda de la inyección única de J&J se ha visto afectada en parte debido a la percepción de que es i nferior a las vacunas de ARNm de dos dosis que mostraron una mayor eficacia en los ensayos clínicos. Pero no está claro si mezclar vacunas aumentará la prote...
Stocks That Soared on Covid Treatments Are Coming Back to Earth Bloomberg 5 hrs ago Morwenna Coniam (Bloomberg) -- Covid-19 case numbers are soaring and health authorities are getting increasingly worried about coronavirus variants, yet investors are growing less optimistic about many of the companies that are trying to develop treatments for the infection. Many of the stocks that skyrocketed in 2020 -- including Tiziana Life Sciences Plc and Sorrento Therapeutics Inc. -- have fallen from their highs amid mounting expectations that the pandemic can be suppressed through vacc...