by Pooja Shete on  December 29, 2020 at 3:52 PM Coronavirus News
Assessing Air Contamination Of COVID-19 In Hospitals
A systematic review was conducted by researchers to determine the level of contamination from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in different hospital areas and the factors that were associated with contamination like viral load and particle size.

The study conducted by Gabriel Birgand, Ph.D., of the Centre Hospitalo-Universitaire de Nantes in France is published in the Journal of the American Medical Association.

The air samples were collected from 5 classes of the hospital areas: close patient environments like patient rooms or bays, toilet or bathroom, clinical areas like workstations, anterooms or buffer rooms, corridors, and other spaces in the clinical unit, staff areas like changing rooms, staff rooms including office, meeting rooms, dining rooms, and other staff areas, public areas like hallways and other indoor and outdoor public areas.


It was found that the air close to and distant from patients with COVID-19 was frequently contaminated with SARS-CoV-2 RNA. However, only a few of these samples contained viable viruses that were capable of causing infection.

High viral loads were found in toilets and bathrooms, staff areas, and public hallways.

Patient rooms and PPE removal rooms had high concentrations per titer of SARS-CoV-2. The rooms receiving low ventilation like toilet and staff rooms and in isolation wards, aerosols of SARS-CoV-2 RNA were detected.

Preventive measures are required to avoid COVID-19 transmission in high viral load rooms like toilets and/or bathrooms, staff areas and public hallways.

Source: Medindia

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