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Scientist working with Coronavirus samples, COVID-19. Coronavirus pandemic. Worldwide Crisis, Countries and cities lockdown

Young woman in white medical gown, protective mask examines contents of test tube shows dislike. Doctor or nurse doing an analysis. Negative result. Yellow background with copy space

Scientist working with Coronavirus samples, COVID-19.Coronavirus pandemic. Worldwide Crisis, Countries and cities lockdown

Scientist working on vaccine for Coronavirus, COVID-19.Coronavirus pandemic. Worldwide Crisis, Countries and cities lockdown

Young woman in medical coat, protective mask and glasses drips reagent into test tube. Doctor or nurse is doing an analysis. Concept against virus: Coronavirus, flu. Yellow background with copy space