Herd immunity refers to protection of a population against an infectious disease when a large proportion of individuals are immune through either vaccinations or past infections.
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Q8: The social environment refers to the totality
Q9: Sexually transmitted diseases, influenza, and acute respiratory
Q10: When an individual comes into contact with
Q11: Vectors can be considered as one way
Q12: The term generation time relates to the
Q14: Incubation period refers to the time between
Q15: Herd immunity must be 100% to confer
Q16: Colonization refers to the spread of plague
Q17: A secondary attack rate is used to
Q18: The case fatality rate is the same
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