tetano
Editor, Senior Moderator
Food Environ Virol
. 2022 May 24.
doi: 10.1007/s12560-022-09524-1. Online ahead of print.
Air Surveillance for Viral Contamination with SARS-CoV-2 RNA at a Healthcare Facility
Amir Zahedi[SUP] 1 [/SUP], Faezeh Seif[SUP] 2 [/SUP], Masoumeh Golshan[SUP] 3 [/SUP], Alireza Khammar[SUP] 4 [/SUP], Mohammad Reza Rezaei Kahkha[SUP] 5 [/SUP]
Affiliations
Abstract
The transmission pathway of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 also called COVID-19 disease) in indoor environments are the main area of contention between health systems and scientists. In this context, little has been investigated about the collection of airborne viral shedding. Here, we collected air samples from 24 locations inside the sole COVID-19 patient care center in Zabol, Iran, for screening SARS-CoV-2 RNA from March to May 2021. Locations included the ICU, COVID-19 wards (CWs) rooms, corridors, nearby nurses' stations, and toilets. We identified the SARS-CoV-2 RNA in breathing zone of CW, in room air, with the positivity rate of 2.5% at a concentration of 17 × 10[SUP]3[/SUP] virus genome copies/m[SUP]3[/SUP] air. It also investigates the relationship between local climate conditions [i.e., temperature and relative humidity] and COVID-19 transmission with the evolution of daily official data on the number of new cases, hospitalizations, and deaths. Current data explained that the difference of temperature and humidity may affect the behavior of virus along with other factors, i.e., population density, individual viral shedding, and infectious dose of SARS-CoV-2 (both indoor and outdoor). Our data support the potential SARS-CoV-2 airborne transmission indoors suggesting the specific safety assessment of building to improve ventilation solutions besides proper using face masks and extensive public health interventions.
Keywords: Airborne transmission; Indoor; SARS-CoV-2 (COVID-19); Ventilation; Viral load.
. 2022 May 24.
doi: 10.1007/s12560-022-09524-1. Online ahead of print.
Air Surveillance for Viral Contamination with SARS-CoV-2 RNA at a Healthcare Facility
Amir Zahedi[SUP] 1 [/SUP], Faezeh Seif[SUP] 2 [/SUP], Masoumeh Golshan[SUP] 3 [/SUP], Alireza Khammar[SUP] 4 [/SUP], Mohammad Reza Rezaei Kahkha[SUP] 5 [/SUP]
Affiliations
- PMID: 35610444
- DOI: 10.1007/s12560-022-09524-1
Abstract
The transmission pathway of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 also called COVID-19 disease) in indoor environments are the main area of contention between health systems and scientists. In this context, little has been investigated about the collection of airborne viral shedding. Here, we collected air samples from 24 locations inside the sole COVID-19 patient care center in Zabol, Iran, for screening SARS-CoV-2 RNA from March to May 2021. Locations included the ICU, COVID-19 wards (CWs) rooms, corridors, nearby nurses' stations, and toilets. We identified the SARS-CoV-2 RNA in breathing zone of CW, in room air, with the positivity rate of 2.5% at a concentration of 17 × 10[SUP]3[/SUP] virus genome copies/m[SUP]3[/SUP] air. It also investigates the relationship between local climate conditions [i.e., temperature and relative humidity] and COVID-19 transmission with the evolution of daily official data on the number of new cases, hospitalizations, and deaths. Current data explained that the difference of temperature and humidity may affect the behavior of virus along with other factors, i.e., population density, individual viral shedding, and infectious dose of SARS-CoV-2 (both indoor and outdoor). Our data support the potential SARS-CoV-2 airborne transmission indoors suggesting the specific safety assessment of building to improve ventilation solutions besides proper using face masks and extensive public health interventions.
Keywords: Airborne transmission; Indoor; SARS-CoV-2 (COVID-19); Ventilation; Viral load.