(FILES) This file photograph created on April 30, 2021, shows a combination of file photographs with the logo of US multinational pharmaceutical company Pfizer (top) at the production site of the Covid-19 vaccine in Puurs, Belgium, on December 22, 2020, and a logo of BioNTech (bottom) at the headquarters of the biopharmaceutical company in Mainz, western Germany. - Pfizer and BioNTech have begun enrollment for a clinical trial to test the safety and immune response of their Omicron-specific Covid-19 vaccine in adults aged up to 55, the companies said in a statement January 25, 2022.  Pfizer's CEO Albert Bourla previously said at a conference that the pharmaceutical giant could be ready to file for regulatory approval of the shot by March. (Photo by JOHN THYS and Yann Schreiber / AFP)
El laboratorio Moderna desarrolló una vacuna que ataca a la variante ómicron del COVID-19.
Hisopado en la Costanera de Asunción.
Los casos más recientes de sublinajes ómicron detectados en Paraguay son los de mayor circulación en Estados Unidos y países de Europa.
Una larga fila de vehículos había en la Costanera de Asunción para el hisopado