Medical research scientist conducts DNA test experiment using test tubes 4K
Close up of microscope glass with sample in hands of female Caucasian epidemiologist in mask, goggles and gloves. Lab assistant looking at sample. Laboratory testing. Clinic research. Analysis concept
Close-up of glass tube with crimson fluid in scientist hand during medical test
Biotechnologists in protective suits inspect a test tube with the first analysis of a biological weapon or vaccine against coronavirus or
Female scientist biologist researcher testing seedling plant test tube lab. Biological agriculture research genetic engineering laboratory
Medical researcher scientist man looking at biological samples under microscope
Medical Research Laboratory: Portrait of Female Scientist Working with Samples, using Micro Pipettes.
Caucasian woman scientist examining microscope
Flushing of test tubes. Stock footage. In a special laboratory, test tubes are washed after chemical reactions using special cleaning
Woman in protective mask and gloves holding covid blood test tube, close up
Scientist holds a chemical sample bottle. Doctor hand in medical with clinical chemistry samples putting them to centrifuge. People hand
Doctor man take saliva sample through nose with cotton swab to check coronavirus test from Asian young woman