Assessment of air and surfaces contamination in a COVID-19 non-Intensive Care Unit
- PMID: 33124608
- PMCID: PMC7809979
- DOI: 10.23749/mdl.v111i5.9991
Assessment of air and surfaces contamination in a COVID-19 non-Intensive Care Unit
Abstract
Background: Severe Acute Respiratory Syndrome - Coronavirus - 2 (SARS-CoV-2) is a virus, primarily transmitted through droplets, able to persist on different surfaces and in the air for several hours. During the COVID-19 pandemic, Health Care Workers should be considered a high risk profession. Beside social distancing rules and the proper use of Personal Protective Equipment, sanitization measures and ventilation system disinfection are essential to reduce viral transmission.
Objectives: This is the first Italian study aiming to assess the magnitude of environmental contamination in a COVID-19 non-Intensive Care Unit.
Methods: In addition to ordinary cleaning procedures, surface and air samplings have been performed before and after the application of two different sanitization devices. Samples have been analyzed with Real Time-Polymerase Chain Reaction in order to find viral RNA.
Results: All samples obtained from surfaces and air before and after extra-ordinary sanitization procedures turned out negative for viral detection.
Discussion: These findings highlight the efficiency of ordinary cleaning procedures in guaranteeing a safer workplace. The adoption of additional sanitization protocols should be considered in order to further reduce environmental viral contamination.
«Valutazione della contaminazione di aria e superfici in un reparto COVID-19 a bassa intensità di cure».
Introduzione:: Il Severe Acute Respiratory Syndrome - Coronavirus – 2 (SARS-CoV-2) è un virus prevalentemente trasmesso tramite droplets, in grado di persistere su differenti tipologie di superfici e nell’aria per diverse ore. Gli operatori sanitari, coinvolti in prima linea durante la recente pandemia, devono essere considerati una professione ad alto rischio di infezione. In aggiunta alle norme di distanziamento sociale e del rigoroso utilizzo dei Dispositivi di Protezione Individuale, l’adozione di procedure di sanificazione e la disinfezione dei sistemi di ventilazione sono misure essenziali per ridurre la probabilità di trasmissione del virus.
Obiettivi:: Questo studio si propone di indagare l’entità della contaminazione ambientale di SARS-CoV-2 in un reparto COVID-19 a bassa intensità di cure.
Metodi:: In aggiunta alle procedure di pulizia ordinaria, sono stati effettuati campionamenti su aria e superfici prima e dopo l’adozione di due diversi meccanismi di sanificazione. I campioni ottenuti sono stati analizzati con la metodica di Real Time- Polymerase Chain Reaction.
Risultati:: Tutti i campioni effettuati, sia prima che dopo le misure di sanificazione non ordinarie, sono risultati negativi per la ricerca del virus.
Discussione:: I risultati evidenziano l’efficacia delle misure di pulizia ordinaria per garantire una maggior sicurezza sul posto di lavoro. L’adozione di procedure di sanificazione non ordinarie dovrebbe essere presa in considerazione per ridurre ulteriormente l’entità della contaminazione virale.
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