Infection Control and Ventilation

Relative humidity differentially modulates decay of structurally distinct respiratory viruses in deposited human saliva particles

The paper examines how relative humidity affects the decay of three respiratory viruses in human saliva particles, finding virus-specific persistence patterns under different humidity conditions.

Material-specific quarantine durations for SARS-CoV-2 inactivation on musical instruments and music-related materials

This study determines SARS-CoV-2 inactivation times on musical materials, showing variability based on porosity and composition, with non-porous surfaces clearing virus in 3 days and porous ones requiring up to 7 days.

Intermediate Relative Humidity Preserves Respiratory Syncytial Virus via a Semi-Solid Bioaerosol State

This study shows that intermediate relative humidity preserves RSV in semi-solid bioaerosol states, while low humidity causes efflorescence and reduces infectivity.

Rate of osmotic pressure change in drying saliva microdroplets drives inactivation of surrogate respiratory bacteria

This study shows that the rate of osmotic pressure change during droplet evaporation predicts bacterial inactivation in drying respiratory droplets.

Condensate-Like Organization in Respiratory Aerosols Modulates the Dynamics of an Airborne Virus

This study uses molecular dynamics simulations to show how respiratory aerosols create structured microenvironments that influence SARS-CoV-2 stability and spike dynamics.

Clean Air Travel: Evaluation of Mask-Free Alternatives to N95 During the Delhi "Air Emergency"

The paper evaluates mask-free alternatives to N95 respirators, demonstrating high filtration efficiency with portable air purifiers in various settings.

Viral transport in evaporating sessile model respiratory droplets

The paper experimentally shows that viral particles in evaporating respiratory droplets aggregate in protein-rich regions, outside salt crystals, and links this to internal flow dynamics.

Effect of carrier droplet size and shape at different viral loads on virus stability during environmental drying

This study compares virus viability in spherical (airborne) and flat (fomite) droplets under different viral loads and surface types, finding higher viability in spherical droplets and increased risk from high viral loads on fomites.

Comparative Aerosol Persistence of Hypermucoid Klebsiella pneumoniae

This study examines the aerosol persistence of K. pneumoniae strains, finding that both laboratory and clinical strains remain viable for up to 32 hours in air.

Irradiation of UVC LED at 277 nm inactivates coronaviruses by photodegradation of spike protein.

This study compares the effectiveness of different UVC wavelengths in inactivating coronaviruses, finding that 277-nm UVC LED is most effective due to spike protein degradation.