Which of the following could be a physical hazard
a shigella bacteria
b plastic packaging
c all purpose cleaner
d mold

Saved if you often notice flakes of dead skin on your shirt, you may have dandruff. if so,

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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