Koeputki, jonka sairaanhoitajan kädessä on karkea kaiverrus lääketieteellisessä korkissa, naamio ja suojalasit hämärtyneellä taustalla eristettynä tummanharmaalla - Kuvapankin valokuva ja kuva

Doctor holds test tube with blood sample for Coronavirus testing, in blue tones. Epidemic Middle East Respiratory Syndrome.

Health worker wearing a respiratory mask, holding the Coronavirus Covid-19 blood test sample,

Selective focus of immunologist holding test tube with red liquid

Panoramic shot of bearded immunologist holding test tubes

Selective focus of beautiful immunologist in glasses looking at test tubes

Selective focus of bearded immunologist in glasses holding test tubes with letters

Selective focus of attractive allergist in glasses holding test tube

Cropped view of nurse in latex glove holding test tube with covid lettering isolated on dark grey

Professional scientist in white coat examining test tube while making experiment in chemical lab

Selective focus of bearded immunologist holding test tubes with letters

Selective focus of bearded immunologist holding test tube with red liquid