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A virologist in a small laboratory observes a sample of blood plasma he is working with in tests for treating COVID19.
A team of scientists works in the laboratory. Man and woman in white bathrobes on background of periodic system of elements. Scientists conduct experiments in chemistry. Man in gloves in the foregroun
Scientist, lab and portrait of black woman with arms crossed for healthcare, medical research and pride. Science, happy and face with smile for medical test, vaccine study and pharmaceutical service
Healthcare, medicine and hospital treatment concept. Serious-looking scientist, african-american doctor in laboratory showing brand-new working vaccine from covid 19, coronavirus cure
Scientists using microscope researching vaccines for protection against viruses (Corona or Covid-19 and influenza virus) in science laboratory

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