Herd immunity in community, doctor with vaccine.
Schlüsselwörter
pandemic,
virus,
infection,
vaccine,
immunity,
quarantine,
protection,
flu,
disease,
widener,
herd,
science,
epidemic,
concept,
health,
corona,
disease,
immune,
social,
people,
immunisation,
medicals,
preventive,
medicine,
symbol,
prevention,
community,
vaccination,
flu,
infected,
distance,
microorganism,
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sick,
ill,
signs,
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treatment,
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