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Expert Opinion on Environmental BiologyISSN: 2325-9655

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Research Article, Expert Opin Environ Biol Vol: 5 Issue: 1

New Sequence Types for Environmental Legionella pneumophila Isolated from Kuwait

Al-Matawah Q1*, Al-Azmi A1, Al-Zenki S1 and Uldum S2
1Kuwait Institute for Scientific Research, Environment and Life Sciences Research Center, PO Box 24885 Safat, 13109 Kuwait
2Statens Serum Institute, Copenhagen, Denmark
Corresponding author : Qadreyah Al-matawah
Kuwait Institute for Scientific Research, Environment and Life Sciences Research Center, PO Box 24885 Safat, 13109 Kuwait
E-mail: [email protected]
Received: November 05, 2015 Accepted: November 25, 2015 Published: November 29, 2015
Citation: Al-Matawah Q, Al-Azmi A, Al-Zenki S, Uldum S (2015) New Sequence Types for Environmental Legionella pneumophila Isolated from Kuwait. Expert Opin Environ Biol 5:1. doi:10.4172/2325-9655.1000125

Abstract

New Sequence Types for Environmental Legionella pneumophila Isolated from Kuwait

A total of 102 environmental isolates of Legionella pneumophila (sg 1 = 19; sg 3 = 33; sg 4= 4 sg 7= 39; sg 10=7) were genotyped by the consensus Sequenced-Based Typing (SBT) scheme developed by the ESCMID Study Group for Legionella Infections (ESGLI former EWGLI). Results showed that the Legionella isolates were discriminated into 11 distinct SBT profiles, of which six (ST1223, ST1436, ST1555, ST1604, ST1718, and ST1719) were new to the ESGLI SBT database. Results showed that ST1718 of L. pneumophila serogroup 7 (38 isolates) was the most prevalent ST. In addition to ST1718, other prevalent STs were identified included ST336 (20 isolates), ST93 (13 isolates), and ST1 (10 isolates). Furthermore, all of the ST1 L. pneumophila sergroup 1 isolates were of the Oxford/OLDA subgroup. This is the first study to describe the use of SBT to characterize environmental Legionella pneumophila isolates from domestic water systems and cooling towers in the State of Kuwait. This baseline data will form the basis for the development of a Legionella environmental surveillance program, which will be used for future epidemiological investigations.

Keywords: Legionaires’ disease; Legionella; Serogroups; ST profile; Water contamination

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