Which of the following is true for Influenza?

waelhammad

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2022-12-05

It is caused by bacteria haemophilus influenza
Frequent antigenic mutation of the causative agent is the main limitation of the efficacy of influenza vaccin
Period of infectivity is 14 days from the onset of symptoms.
Vaccine is not availabl

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waelhammad

2022-12-05

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b) Frequent antigenic mutation of the causative agent is the main limitation of the efficacy of influenza vaccin

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