https://joy.videvo.net/videvo_files/video/free/2019-03/large_watermarked/181004_10_LABORATORIES-SCIENCE_08_preview.mp4 Petri Dish Sample Close up of a scientist putting a sample into a petri dish in a laboratory. 1080pbacteriabeakerbiologistbiologychemistchemistrycoll_pandemiccoll_vaccinecontainercorona viruscoronavirusdiscoverydishequipmentexperimentgermsglasslablaboratorymicrobesmicroorganismsneedlepetripipetteresearchsamplesciencescientific