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Transcript
Skin & Hand Hygiene
Dr. Lee Adler
© Infocus Learning Systems 2001-2002
Foodborne Illness
A Physician’s View
“Restaurants are from Venus and Physicians
are from Mars”
• “What Food Codes”?
• “Call the Health Department!”
• “You must have food poisoning”
• “Stay home from work”
Mechanisms to reduce risk
• Contact while working
• Fecal-oral route
• Handwashing!
Foodborne Illness
USA
• Annual Incidence
• 6.4 million to 76 million cases
• Annual Mortality
• 5000 to 9,000 cases
• Hospitalizations
• 325,000 cases
Foodborne Illness
ONSET
Salmonella
6-48 Hours
Shigella
1-7 Days
E. coli O157
12-60 Hours
C. jejuni
8-22 Hours
V. parahaem.
4-96 Hours
Hepatitis A
1-7 Weeks
DURATION
1-4 Days
4-7 Days
2-9 Days
1-14 Days
4-7 Days
2-24 Weeks
Foodborne Illness
Infectious Doses
Salmonella species
Shigella Species
E. coli O157:H7
Campylobacter jejuni
V. parahaemolyticus
Hepatitis A virus
Norwalk virus
15 to 20
10
10 to 100
400 to 500
1,000,000
10 to 100
unknown
Skin Infection and Hygiene
Variation
• Food worker
• Immunity
• Hand condition
• Behavior
• Antiseptic Products
• Gloves
Variation
• Handwashing Technique
•
•
•
•
Wash
Scrub time
Rinse
Dry
• Temperature
• Bacterial load
The skin’s structure
Skin Infection and Hygiene
• Skin as a barrier
• Primary Protective Barrier
• Epidermidis superficial layer forms tough, horny layer (15).
• Layer replaced every day, total change every 14 days
• Lipids & Corneocytes
• Water keeps skin soft & pliable
• Normally acidic pH
• Soap increases pH >7.0 for >3 hours
Skin Infection and Hygiene
• Handwash Changes
• Short Term (transient)
• Reduce surface fat & reduce superficial bacteria
• Long Term
• Chronic Damage, irritant contact dermatitis (<40%
for HCW), eczema and flora changes (more
bacteria and difficult to reduce numbers)
Skin Infection and Hygiene
• Skin Microbiology
• Transient Bacteria
• Few layers of stratum corneum
• Wash reduces bacterial count shed
• Resident Bacteria
• Throughout the layers of stratum corneum
• Stable numbers; however, changes with
handwash damage
Contact us:
Dr. Lee Adler
Infocus Learning Systems
1216 Flamingo Parkway
Libertyville, IL 60048
• 1.800.4.InFocus