Health Hygiene
This section covers health hygiene. The exam tests personal hygiene, environmental hygiene, food and water safety, and the link between hygiene practices and disease prevention.
Personal hygiene
Regular bathing, oral care, clean nails and hair, clean clothing, foot care and menstrual hygiene reduce skin, dental and reproductive-tract infections. Hand hygiene is the single most practical measure against faecal-oral disease. Wash with soap and water for about 40-60 seconds, especially before eating and after using the toilet. Alcohol-based rub is useful when hands are not visibly dirty.
Environmental hygiene
Safe drinking water, sanitary toilets, safe waste disposal, vector control, ventilation and clean food-handling areas prevent diarrhoeal, respiratory and vector-borne diseases. Food hygiene includes separating raw and cooked food, cooking thoroughly, storing food safely and using safe water.
Worked example
Several hostel students develop diarrhoea in one week. Reasoning: the clustering suggests a common faecal-oral source. Check drinking water, toilet cleanliness, handwashing facilities and food storage. Promote handwashing with soap, chlorinate or boil suspect water, and exclude infected food handlers until cleared. The reasoning links transmission route to control measures rather than blaming a single food item without evidence.
Traps
Do not use hand sanitiser as a substitute for soap when hands are visibly soiled. Do not confuse hygiene with sanitation: hygiene is personal practice; sanitation is infrastructure for waste and sewage. Do not assume cooked food is safe if it is stored warm for hours.