Vista recortada de la persona que sostiene la jeringa y el frasco con la vacuna aislada en gris - Metraje y vídeo de stock

Closeup of microbiologist or medical worker hand with blue surgical gloves marking blood test result as positive for the H1N1. H1N1 Positive concept

Closeup of microbiologist or medical worker hand with blue surgical gloves marking blood test result as positive for the influenza. Influenza Positive concept

Closeup of microbiologist or medical worker hand with blue surgical gloves marking blood test result as positive for the plague, black death. Plague Positive concept

Closeup of microbiologist or medical worker hand with blue surgical gloves marking blood test result as positive for the syphilis. Syphilis Positive concept