Hygiene — Intermediate Guide
Intermediate Hygiene
Water and Sanitation
WATERBORNE DISEASES:
Cholera: Vibrio cholerae | contaminated water | rice-water stools
Typhoid: Salmonella typhi | faecal-oral route | sustained fever
Hepatitis A: faecal-oral | vaccine available | liver inflammation
Cryptosporidiosis: protozoan parasite | chlorine-resistant | diarrhoea
WATER TREATMENT:
Household: boiling (1 min rolling boil kills all pathogens)
chlorination (1 drop sodium hypochlorite per litre, 30 min contact)
filtration (removes turbidity, some bacteria — NOT viruses alone)
SODIS (solar disinfection — 6 hours sunlight in clear PET bottle)
Municipal: coagulation → sedimentation → filtration → chlorination
SANITATION (WASH):
Water: access to safe water within 30 minutes
Sanitation: access to improved toilet not shared with other households
Hygiene: handwashing facility with soap at toilet and kitchen
Open defecation: major disease route | India's Swachh Bharat Mission targets elimination
ODF (Open Defecation Free): villages with 100% toilet use and maintenance
HOUSEHOLD HYGIENE:
Kitchen: separate chopping boards (raw meat vs vegetables)
clean surfaces before food prep
wash vegetables and fruits before consumption
store food covered and at correct temperature
Bathroom: clean toilet weekly with disinfectant
clean sink and taps (high-touch surfaces)
ventilate to prevent mould
Laundry: wash at 60°C+ to kill bacteria (or use detergent + hot tumble dry)
separate soiled items immediately
wash hands after handling soiled laundry
Revision Notes
WATERBORNE: cholera | typhoid | hepatitis A | cryptosporidiosis
WATER TREATMENT: boiling (1 min) | chlorination | filtration | SODIS
WASH: Water + Sanitation + Hygiene — WHO global health priority
KITCHEN: separate boards | wash produce | correct temperature storage
LAUNDRY: 60°C kills bacteria | separate soiled items | hand hygiene after
ODF: Open Defecation Free — India Swachh Bharat Mission target
Additional Notes
Cloud and infrastructure tools evolve rapidly. Always cross-reference with the official documentation for the most current commands and best practices.
Key Principles
•Start with fundamentals before advanced configurations
•Practice in a sandbox environment before applying to production
•Understand the underlying concepts, not just the commands
•Join community forums and follow official release notes for updates
•Certifications validate knowledge — consider pursuing relevant credentials to demonstrate expertise
Recommended Learning Path
1.Complete official documentation and getting started guides
2.Practice with hands-on labs and sandbox environments
3.Build real projects to solidify understanding
4.Study for and obtain relevant certifications
5.Contribute to open-source projects or write blog posts to deepen knowledge
Community Resources
•Official documentation is always the authoritative source
•GitHub repositories often contain real-world examples and configurations
•Stack Overflow and community forums help with specific problems
•YouTube tutorials provide visual walkthroughs for complex topics
•Local meetups and online communities connect you with practitioners
