PHE (Primary Classes)

PATHOGENS: DISEASES AND PREVENTION

MEANING OF SICKNESS AND ILLNESS A DISEASE is an impairment of health or a condition of abnormal functioning. PATHOGENS: Any disease-producing agent (especially a virus, bacterium or other microorganism) MEANING OF SICKNESS It is a state when the body is not in a comfortable position It is the unsoundness of the body It is illness, disorder, […]

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