Swine Flu (H1N1) Surface Survival and Indirect Transmission

The 2009 H1N1 pandemic virus (and seasonal influenza) can contaminate surfaces via:

• Direct deposition from coughs/sneezes
• Contaminated hands touching surfaces
• Aerosol settling

Surface Survival

• Hard non-porous (steel, plastic): Up to 48 hours
• Porous (fabric, paper): 8–12 hours
• Hands: ~5–15 minutes (but frequent recontamination occurs)

Indirect Transmission Chain

Infected person → contaminates surface → susceptible person touches surface → touches mucosa (eyes/nose/mouth) → infection.

Breaking the Chain

• Hand hygiene (critical – most effective single intervention)
• Surface disinfection (EPA-registered antiviral agents)
• Respiratory etiquette (cover coughs, mask if sick)
• Avoid face touching

Airborne/droplet transmission remains primary. Surface cleaning supplements but doesn't replace respiratory precautions.