English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Legionella is an intracellular bacterium that can cause a severe communityacquiredand nosocomialpneumonia, known as legionnaire disease (LD). The bacterium thrives in freshwater environments,including manmadewater systems. Transmission from water to the human host is mediated byaerosols produced by devices such as cooling towers (CTs) and air conditioners. Hypothesis: CTs inQatar contain significant counts of the organism, making it a potential waterborne pathogen to the localpopulation. Objectives: Despite the abundance of central cooling systems in Qatar, there is no publishedreport examining the presence of Legionella in them. The goal of this study is to investigate thepresence of this organism in a number of CTs in Qatar. Methods: Ten CTs located at Qatar Universitywere selected as a representative model for CTs in Qatar. A total of 94 water samples were collectedfrom these CTs from November 2013 to July 2014. Suspected growth was recovered from water byfiltration and concentration. DNA was extracted from the water concentrates and Legionella count wasassessed by quantitative realtimePCR (qRTPCR).Results: Legionella species were found in 100% ofthe samples collected. The lowest count was .006 CFU/mL and the highest was 199.56 CFU/mL. Asrecommended by the CDC, the critical count of more than 10 CFU/mL represents a potential hazard.The count was found in 55.3 % of the samples. High counts were mainly seen in May and July in the oldand new CT units, respectively. Conclusion: This is the first study of its kind in Qatar and it suggests thatLegionella could be a potential health risk. Findings of the study call for the urgent need to investigatethe Legionella count in potable water systems, develop a standard for count evaluation, and set upmonitoring programs

First Study in Qatar to Reveal High Legionella Count in Cooling Towers