Scientist testing with coronavirus through test tubes. Original image sourced from US Government department: Public Health… Free Image from public domain license 
Scientist removes cell growth medium from a 6–well plate in preparation for a plaque assay, which is a test that allows… Free Image from public domain license 
Lab technician adding a solution to an Enzyme–Linked Immunosorbent Assay (ELISA) plate Original image sourced from US… Free Image from public domain license 
Scientist testing with virus through test tubes. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
Seeds are secured in plant pillows for the Veggie plant growth system inside a laboratory in the Space Station Processing… Free Image from public domain license 
A scientist implementing molecular testing. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
A scientist holding bacterial samples for their antimicrobial susceptibility. Original image sourced from US Government… Free Image from public domain license 
A scientist working with samples to be tested using a real time PCR machine. Original image sourced from US Government… Free Image from public domain license 
STS-131 NASA & Walter Reed Hospital Tissue Growth Experiments - Flight Preps. Original from NASA . Digitally enhanced by… Free Image from public domain license 
A scientist testing bacterial samples for their antimicrobial susceptibility. Original image sourced from US Government… Free Image from public domain license 
Scientists using automated methods to extract bacterial DNA, for use in whole genome sequencing (WGS). Original image sourced… Free Image from public domain license 
Test Tubes from experimenting on coronavirus. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
Laboratory technician working with electronic cigarettes. Original image sourced from US Government department: Public Health… Free Image from public domain license 
Four test tubes of bacterial microorganism. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
Using a black light, a technician closely inspects one of NASA's twin Radiation Belt Storm Probes inside the clean room high… Free Image from public domain license 
Microbiologist preparing for antibody testing. A healthcare provider donning a pair of green latex gloves in order to protect… Free Image from public domain license 
Scientist analyzing samples from industrial hygiene investigations. Original image sourced from US Government department:… Free Image from public domain license 
Sample of test tubes. A healthcare provider donning a pair of green latex gloves in order to protect herself during her… Free Image from public domain license 
Arabidopsis seeds are being planted in Veggie Passive Orbital Nutrient Delivery System (PONDS) units inside a laboratory at… Free Image from public domain license 
Health officials inspecting specimens suspected of being connected to a hantavirus outbreak. Original image sourced from US… Free Image from public domain license 
Sample of test tubes. A healthcare provider donning a pair of green latex gloves in order to protect herself during her… Free Image from public domain license 
A Petri dish culture plate, which had contained a growth medium of sheep blood agar (SBA), and which was inoculated with… Free Image from public domain license 
Laboratory technicians working in health lab. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
Test Tubes from experimenting on coronavirus. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
A scientist holding a culture test plate. Original image sourced from US Government department: Public Health Image Library… Free Image from public domain license 
A test tube tray containing a number of purple tipped vacutainer tubes. Original image sourced from US Government department:… Free Image from public domain license 
A scientist holding up a glass slide. Original image sourced from US Government department: Public Health Image Library… Free Image from public domain license 
Test Tubes from experimenting on coronavirus. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
Healthcare workers donning a pair of protective goggles and protective equipment. Original image sourced from US Government… Free Image from public domain license 
Scientist testing with virus through test tubes. A healthcare provider donning a pair of green latex gloves in order to… Free Image from public domain license 
Laboratory technician working with a cell culture solution, using a syringe to add some of the sample to a glass bottle. A… Free Image from public domain license 
A medical illustration of clindamycin–resistant group B Streptococcus bacteria. Original image sourced from US… Free Image from public domain license 
A 440X photomicrograph magnification of a hematoxylin and eosin (H&E)–stained liver tissue specimen, revealed the… Free Image from public domain license 
Laboratory technician working with a cell culture solution, using a syringe to add some of the sample to a glass bottle.… Free Image from public domain license 
A 3D graphic representation of a spherical-shaped, measles virus particle, that was studded with glycoprotein tubercles.… Free Image from public domain license 
This photo was assembled from three black and white negatives by the Image Processing Lab at Jet Propulsion Laboratory.… Free Image from public domain license 
Scientist pipetting samples of bronchoalveolar lavage (BAL) fluid. Original image sourced from US Government department:… Free Image from public domain license 
The fairing acoustic protection (FAP) system lines the inside of the Atlas V payload fairing for NASA's Mars Science… Free Image from public domain license 
A medical illustration of drug–resistant, Mycoplasma genitalium bacteria. Original image sourced from US Government… Free Image from public domain license 
Chest x-ray of a patient with mycoplasma pneumonia. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
A scientist examining the results of a hemagglutinin inhibition (HI) test. Original image sourced from US Government… Free Image from public domain license 
Local health centers experimenting with coronavirus. Original image sourced from US Government department: Public Health… Free Image from public domain license 
A scientist examining the results of a hemagglutinin inhibition (HI) test. Original image sourced from US Government… Free Image from public domain license