Un científico sostiene un tubo de ensayo con un análisis de sangre. Análisis de sangre para detectar una infección por un coronavirus u otra enfermedad infecciosa. - Foto e imagen de stock

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

Closeup photo of lady professional doc clinic hospital virology examination, hold arm analysis blood probe covid test results positive negative wear face mask isolated grey color background

Coronavirus covid 19 infected blood vial in hand of female doctor with surgical mask and glows. Coronavirus covid 19 reseach laboratory, coronavirus covid-19 vaccine research.

Blood test tube in doctor hand, Mers-CoV Coronavirus test Positive label in hospital blood test tube for analysis. 2019-nCoV virus infection originating in Wuhan, China.

Hand holding test tube with blood ready for testing. Laboratory biochemical blood test

In the hand of a medical worker, against the background of a paper holder and a pen, is a test tube with blood, which will be carried to the laboratory for analysis for the presence of a stamp of

Blood test tube in doctor hand, Mers-CoV Coronavirus test Positive label in hospital blood test tube for analysis. 2019-nCoV virus infection originating in Wuhan, China.

Medical equipment. Blood test.Pipette adding fluid to one of several test tubes .

Nurse hand fills out a medical form Coronavirus test on hospital table with respiratory mask and test tubes with blood for analysis. 2019-nCoV virus infection originating in Wuhan, China

Doctor hand in medical glove holding test tube with blood for 2019-nCoV analyzing in laboratory. Novel Coronavirus originating in Wuhan, China. Coronavirus blood test concept

Nurse wearing respirator mask holding a positive blood test result for the new rapidly spreading Coronavirus, originating in Wuhan, China