Quantifying the reduction of airborne infectious viral load using a ventilated patient hood.

ABSTRACT:

Background

Healthcare workers treating SARS-CoV-2 patients are at risk of infection by respiratory exposure to patient-emitted, virus-laden aerosols. Source control devices such as ventilated patient isolation hoods have been shown to limit the dissemination of non-infectious airborne particles in laboratory tests, but data on their performance in mitigating the airborne transmission risk of infectious viruses are lacking.

Aim

We used an infectious airborne virus to quantify the ability of a ventilated hood to reduce infectious virus exposure in indoor environments.

Methods

We nebulized 10⁹ plaque forming units (pfu) of bacteriophage PhiX174 virus into a ∼30-m³ room when the hood was active or inactive. The airborne concentration of infectious vi

SUBMITTER: Lee LYY 

PROVIDER: S-EPMC10125916 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature