Infectious Control for the Business Owner

Viruses require a living host cell to replicate — they cannot multiply independently on surfaces, but they can survive and remain infectious for extended periods

Enveloped viruses (influenza, coronaviruses): lipid membrane makes them susceptible to alcohol, quaternary ammonium compounds, and sodium hypochlorite at relatively low concentrations

Non-enveloped viruses (norovirus, adenovirus): no lipid membrane — require higher-concentration or specific-action disinfectants for effective inactivation

Aerosol vs. droplet transmission: aerosols (particles under 5 microns) remain airborne and travel further than droplets — significant for infection control work following respiratory illness events

Surface survival times vary significantly by virus type, surface material, humidity, and temperature — always use current evidence-based references, not generalised rules

Field Action: When a client contacts you about a suspected or confirmed viral contamination event, ask for the specific pathogen if known. The disinfectant protocol, PPE level, and verification method you select must be matched to that specific pathogen — not a generic response.