close up. the scientist carefully looking at the test tube .
Palabras clave
people,
scientist,
virus,
tube,
liquid,
vaccine,
testing,
laboratory,
medicine,
science,
research,
test,
medicals,
laboratory,
table,
background,
closeup,
concept,
scientific,
experiment,
pharmaceutical,
glasses,
test tube,
discovery,
canvasses,
container,
health,
epidemic,
sample,
flu,
researcher,
health care,
blood,
protective,
gloved,
vaccination,
work,
study,
solution,
medicine,
researching,
test tube,
diagnostic,
exam,
selective,
confidence,
expertise