Airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2): What is the implication of hospital infection control?

Indoor Air Quality Evaluation Using Mechanical Ventilation and Portable Air Purifiers in an Academic Dentistry Clinic during the COVID-19 Pandemic in Greece

“…In a recent study, it was shown that the combination of the intraoral and extraoral mechanical suction of the produced aerosol had better results in reducing the microbial load in the air than the use of intraoral alone [25]. The same conclusions arose in a very recent article stating that even portable high-efficiency particulate filters may be installed especially in an old-fashioned ward in healthcare institutions with suboptimal ventilation [13]. In Table 3, which refers to the morning shifts, it is clear that from the first operational week (17-21 May 2021), when both air purifiers were activated, there was a significant increase in all examined air pollutants during 24-28 May 2021 and 31 May-4 June 2021.…”

“…In the context of the ongoing COVID-19 pandemic, studies were recently conducted to investigate the efficiency of portable air purifiers in homes and various workplaces [13][14][15]. However, to the best of our knowledge, there is no published study investigating the efficiency of portable air purifiers in academic dental clinics.…”

Outbreak investigation of airborne transmission of Omicron (B.1.1.529) - SARS-CoV-2 variant of concern in a restaurant: Implication for enhancement of indoor air dilution

“… Ito et al, (2021) Our serial air sampling conducted in the airborne infection isolation facilitates designated for COVID-19 patients have eventually demonstrated the presence of viral RNA in the air samples. Cheng et al, (2020 ; Cheng et al, 2020 ; Wong et al, 2021) Airborne transmission with superspreading phenomenon was also observed in the medical ward with 6 ACH,( Cheng et al, 2021 ) posing a new challenge to our infection control and prevention measures in the hospitals. Cheng et al, (2021) Therefore, it would be impossible to achieve zero SARS-CoV-2 transmission in the restaurant.…”

Air dispersal of meticillin-resistant Staphylococcus aureus in residential care homes for the elderly: implications for transmission during the COVID-19 pandemic

“…None of the RCHEs with indoor fans turned off had MRSA detected from air samples. Improving indoor ventilation is increasingly emphasized during the COVID-19 pandemic in view of the airborne transmission potential of COVID-19, [28][29][30][31] and repeated episodes of COVID-19 transmission in designated quarantine hotels. 32,33 However, the use of indoor fans may paradoxically facilitate air dispersal of MRSA in RCHEs, especially given the high prevalence of MRSA among residents.…”