Legionella surveillance in stagnant water systems during COVID-19 lockdown in Istanbul

Türetgen, Irfan

doi:10.21161/mjm.211187

Cited by 3 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More experts and scholars are studying the correlation between bioaerosols and COVID-19. Te concentration of bioaerosols is not only related to indoor air quality but also has an important relationship with the spread speed and expansion of the COVID-19 epidemic [57][58][59][60][61][62][63][64][65][66][67][68][69][70][71].…”

Section: Methodsmentioning

confidence: 99%

Key Elements Affecting the Library’s CFU Concentration in Taiwan

et al. 2023

View full text Add to dashboard Cite

Public libraries are popular gathering places, so understanding the factors that contribute to colony-forming unit (CFU) concentrations and how to minimize them is essential. This study aimed to investigate the factors that affect CFU concentrations in a public library, using air sampling (Bioluminescent ATP-assay) and statistical analysis software (SPSS) to collect and analyze data. The findings indicated that the CFU concentration in the library was significantly influenced by the air quality surrounding the building, the number of library visitors, and the hygiene and health of both visitors and employees. Additionally, indoor temperature and humidity were found to be key factors affecting CFU concentration. These findings suggest the need for better ventilation and air filtration systems, as well as regular cleaning and disinfection in public libraries. Furthermore, research is recommended to investigate other potential factors that may impact indoor air quality in public spaces.

show abstract

Section: Methodsmentioning

confidence: 99%

Key Elements Affecting the Library’s CFU Concentration in Taiwan

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Therefore, the studies are focused on the problems that may occur in the water system infrastructure [112] due to the changes in water demand. Hence, the topics studied were the risks of the degradation of the water quality in buildings' plumbing (increased levels of lead or copper) and the increased risks of the appearance and growth of bacteria counts (e.g., Legionella) [113][114][115][116][117]. Water demand patterns radically changed with the pandemic; household consumption increased all over the world [4][5][6][107][108][109], while industrial and public (universities, colleges, schools, administrative buildings, hotels, etc.)…”

Section: Access To Safe and Improved Drinking Watermentioning

confidence: 99%

Section: Access To Safe and Improved Drinking Watermentioning

confidence: 99%

COVID-19 and Water Variables: Review and Scientometric Analysis

Mare

Hadarean

et al. 2023

IJERPH

View full text Add to dashboard Cite

COVID-19 has changed the world since 2020, and the field of water specifically, boosting scientific productivity (in terms of published articles). This paper focuses on the influence of COVID-19 on scientific productivity with respect to four water variables: (i) wastewater, (ii) renewable water resources, (iii) freshwater withdrawal, and (iv) access to improved and safe drinking water. The field’s literature was firstly reviewed, and then the maps were built, emphasizing the strong connections between COVID-19 and water-related variables. A total of 94 countries with publications that assess COVID-19 vs. water were considered and evaluated for how they clustered. The final step of the research shows that, on average, scientific productivity on the water topic was mostly conducted in countries with lower COVID-19 infection rates but higher development levels as represented by gross domestic product (GDP) per capita and the human development index (HDI). According to the statistical analysis, the water-related variables are highly significant, with positive coefficients. This validates that countries with higher water-related values conducted more research on the relationship with COVID-19. Wastewater and freshwater withdrawal had the highest impact on the scientific productivity with respect to COVID-19. Access to safe drinking water becomes insignificant in the presence of the development parameters.

show abstract

Impact of prolonged hotel closures during the COVID-19 pandemic on Legionella infection risks

Molina

Bennassar²,

Palacio³

et al. 2023

Front. Microbiol.

View full text Add to dashboard Cite

In general, it is accepted that water stagnation and lack or poor maintenance in buildings are risk factors for Legionella growth. Then, in theory, the prolonged hotel closures due to the COVID-19 pandemic may have increased the risk of Legionella infections. However, there are very few field studies comparing the level of Legionella colonization in buildings before the pandemic and the new situation created after the lockdown. The objective of this study was to analyze these differences in a group of hotels that experienced prolonged closures in 2020 due to the COVID-19 pandemic. We have studied the Legionella spp. results, analyzed by standard culture, from the domestic water distribution systems of 73 hotels that experienced closures (from 1 to >4 months) during 2020, immediately after the reopening. The results were compared with those obtained in similar samplings of 2019. For the comparative analysis, we divided the hotels in two groups: Group A that have suffered closures for ≤3 months and Group B that remained closed for more than 3 months, both in relation to the opening period of 2019. In the Group B (36 sites), the frequency of positive samples in the hot water system increased from 6.7% in 2019 to 14.0% in 2020 (p < 0.05). In the Group A (37 sites), no significant differences were observed. No statistically significant differences were observed in terms of positive sites (defined as hotels with at least 1 positive sample), Legionella spp. concentrations and prevalence of Legionella pneumophila sg1 between the samplings of the two periods studied. The results suggest that hotels that suffered the longest prolonged closures (> 3 months) could have carried a higher risk of exposure to Legionella in the domestic hot water system. These findings highlight the importance of adequate preopening cleaning and disinfection procedures for hotel water systems, and the convenience of considering the most effective disinfection methods especially for hot water systems and after prolonged closure periods.

show abstract

Legionella surveillance in stagnant water systems during COVID-19 lockdown in Istanbul

Cited by 3 publications

References 16 publications

Key Elements Affecting the Library’s CFU Concentration in Taiwan

Key Elements Affecting the Library’s CFU Concentration in Taiwan

COVID-19 and Water Variables: Review and Scientometric Analysis

Impact of prolonged hotel closures during the COVID-19 pandemic on Legionella infection risks

Contact Info

Product

Resources

About