Explain why the greatest benefits to cardiovascular fitness comes from sustained physical activities like running walking and cycling

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Which of the following accounts for someone who has had regular herpesvirus-mediated cold sore or genital sore flare-ups? a) re-infection by a closely related herpesvirus of a different strainb) re-infection by the same herpesvirus strainc) copies of the herpesvirus genome permanently maintained in host nucleid) copies of the herpesvirus genome permanently maintained in host cell cytoplasm

The age of receding pandemics is one of three progessive ages of epidemiologic transition. select one: true false