Hand in blue medical glove holding test tube with green liquid on dark background with chemistry liquids and bubbles.
Schlüsselwörter
virus,
tube,
test,
hand,
liquid,
medicals,
glove,
science,
laboratory,
research,
health,
infection,
molecular,
disease,
biotechnology,
microbiology,
germ,
laboratory,
protection,
vaccine,
blue,
prevention,
health care,
experiment,
virology,
hygiene,
sanitation
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