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According to the World Health Organization (WHO), an estimated 240 million people are chronically infected with hepatitis B. This number describes hepatitis B's

incidence.

prevalence.

mortality.

virulence.

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User Dejohn
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1 Answer

9 votes

Answer:

A -- incidence -- the occurrence, rate, or frequency of a disease, crime, or something else undesirable.

Step-by-step explanation:

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User Dalimian
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