Un médico con guantes, gafas, una tapa desechable y una máscara sostiene un frasco de medicamento y una jeringa, cuya aguja ya está pegada en el frasco con medicamento.. - Foto e imágenes de stock

A medical worker in gloves, glasses, a medical cap and a mask holds a bottle of medicine and a syringe, the needle of which is already stuck into the bottle with medicine.

Concept of COVID-19 - Coronavirus disease - 2019-nCoV. Doctor holding blood sample for analysis and sampling of Covid-19 infectious disea.

Doctor filling syringe with vaccine against Covid-19 in laboratory, focus on hands

Close up. scientist filling a syringe with a new vaccine. vaccination concept.

Medical doctor or laborant holding tube with nCoV Coronavirus vaccine for 2019-nCoV virus

A doctor or scientist in laboratory holding a syringe with liquid vaccines for children or older adults.

A medical worker from the laboratory sits at a table and holds an ampoule with a coronavirus vaccine in his hands, test tubes with different liquids in a holder are visible on the table. The paramedic

In the hands of a girl in a white gown and protective gloves, an ampoule with a mark with the name of the virus that hit the whole world in 2020

Portrait of woman doctor with a syringe.

Lab technician testing blood samples on hospital, hands close up. Coronavirus. COVID-19. Hospital Blood Test. Vaccine Development Coronavirus Test.

Doctor, nurse, scientist hand in blue gloves holding flu, measles, coronavirus, covid-19 vaccine.

In the foreground of medical laboratory devices and in the background, a scientist in protective gloves and a white lab gown holds an ampoule with a vaccine against the nCov 19 virus

A scientist holds a test tube with a blood test. A blood test for infection with a coronavirus or other infectious disease.