Médico sosteniendo un tubo de ensayo de solución líquida en un laboratorio, preparando los resultados. epidemia pandémica coronavirus 2019-ncov sars covid-19 influenza virus concepto - Foto e imagen de stock

Laboratory scientist conducts experience or analyzes. 2019-nCoV, coronavirus. nature old experienced male in medical suit examine the test tube

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Man in white uniform holding a syringe in the lab. close up cropped photo

Female cosmetologist is preparing for an injection, studio shot. close up photo. isolated white background. medicine, healthcare concept

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Vaccine in male doctor hand, preparing to vaccine female patient at home. use for prevention, immunization and treatment from corona virus infection. close-up focus on vaccine bottle

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Doctor with antibiotics. blurred background. focus on the syringe. . first help. treatment for sick people.