scholarly journals Differences of Legionella Pneumophila Serogroups Distribution in Well Water, Tap Water, Ice Cubes, Hospital and Hotel Water in East Java

2018 ◽  
Author(s):  
Eduardus Bimo Aksono ◽  
Kadek Rachmawati ◽  
Retno Bijanti
Keyword(s):  
Polymerase Chain Reaction ◽  
Phylogenetic Tree ◽  
Legionella Pneumophila ◽  
Water Samples ◽  
Tap Water ◽  
Natural Habitat ◽  
Well Water ◽  
Chain Reaction ◽  
Water Ice ◽  
Polymerase Chain

Background Legionella pneumophila is one of the causes of legionellosis. Water environments serve as the natural habitat and the main sources of Legionella pneumophila. Objectives The aims of this study was to understand the differences of Legionella pneumophila serogroups distribution in well water, tap water, ice cubes, hospital and hotel water in East Java-Indonesia. Methods a total of 60 water samples in east java-Indonesia; from well water (n=25), tap water (n=5), ice cubes (n=5), water from the hospital (n=16), and hotel water (n=9) were detected using polymerase chain reaction with mip gene spesific primers and then it was analyzed by phylogenetic tree. Results For the 60 water samples collected in East Java, 12% of the samples (7/60) were positively contaminated by L. pneumophila. In details, there was 8% of the well water samples (2/25), 2% of the tap water samples (1/5), 2% of the ice cubes samples (1/5), 0% of the hospital water samples (0/16) and 33.33% of the hotel water samples (3/9). The phylogenetic tree showed that Legionella pneumophila contaminating well water isolate 1 from Surabaya and tap water isolate from Sidoarjo was closer to L.pneumophila serogroup 2, 4, 6, 8, 10, 12, isolates from Brazil, China, Spain and Australia. L.pneumophila contaminating the ice cubes from Sidoarjo was closer to serogroup 1, 2, 4, 7, 8, 11, 13, 14, while the bacteria contaminating well water isolate 2 from Sidoarjo as well as water in hotel of Surabaya (hotel water isolate 1, 2 and 3) classified into their own group. Conclusion There is a difference in the distribution of L. pneumophila serogroups between well water, tap water, ice cubes, and hotels.

Subtyping ofLegionella pneumophilaisolates by arbitrarily primed polymerase chain reaction

1995 ◽  
Vol 41 (9) ◽  
pp. 846-848 ◽  
Author(s):  
E. Ledesma ◽  
J. Llorca ◽  
M. A. Dasí ◽  
M. L. Camaró ◽  
E. Carbonell ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Legionella Pneumophila ◽  
Water Sources ◽  
Chain Reaction ◽  
Single Room ◽  
Legionnaires Disease ◽  
Polymerase Chain ◽  
Resort Hotel ◽  
Different Water Sources

Arbitrarily primed polymerase chain reaction (AP-PCR) was used to differentiate strains of Legionella pneumophila isolated from different water sources in a resort hotel in Benidorm, Alicante, Spain, where an outbreak of Legionnaires' disease occurred among a group of tourists between 65 and 80 years of age. All isolates were L. pneumophila serogroup 1, subtype Pontiac (Knoxville 1). Five different patterns (P1 to P5) were obtained by AP-PCR. The number of bands per pattern varied between 4 and 11. Patterns P1 and P2 represented 60 and 20% of L. pneumophila isolates, respectively. Since different subpopulations of L. pneumophila coexisted (up to three different AP-PCR patterns were identified in a single room), it was not possible to link an individual L. pneumophila strain to the occurrence of this outbreak.Key words: Legionella pneumophila, AP-PCR, subtyping, outbreak.

scholarly journals Diversity ofLeptospiraspp. in Rats and Environment from Urban Areas of Sarawak, Malaysia

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Chai Fung Pui ◽  
Lesley Maurice Bilung ◽  
Kasing Apun ◽  
Lela Su’ut
Keyword(s):  
Polymerase Chain Reaction ◽  
Water Samples ◽  
Urban Areas ◽  
Environmental Samples ◽  
Soil Samples ◽  
Chain Reaction ◽  
Prevalence Studies ◽  
Pcr Method ◽  
Polymerase Chain ◽  
Soil And Water

Various prevalence studies onLeptospirain animals and humans, as well as environmental samples, had been conducted worldwide, including Malaysia. However, limited studies have been documented on the presence of pathogenic, intermediate, and saprophyticLeptospirain selected animals and environments. This study was therefore conducted to detectLeptospiraspp. in rats, soil, and water from urban areas of Sarawak using the polymerase chain reaction (PCR) method. A total of 107 rats, 292 soil samples, and 324 water samples were collected from April 2014 to February 2015. PathogenicLeptospirawas present in 5.6% (6/107) of rats, 11.6% (34/292) of soil samples, and 1.9% (6/324) of water samples. IntermediateLeptospirawas present in 2.7% (8/292) of soil samples and 1.9% (6/324) of water samples. SaprophyticLeptospirawas present in 10.3% (11/107) of rats, 1.4% (4/292) of soil samples, and 0.3% (1/324) of water samples. From this study, 76Leptospiraspp. were isolated. Based on DNA sequencing, the dominantLeptospiraspp. circulating in urban areas of Sarawak are pathogenicLeptospira noguchii, intermediateLeptospira wolffiiserovar Khorat, and saprophyticLeptospira meyeri, respectively. Overall, this study provided important surveillance data on the prevalence ofLeptospiraspp. from rats and the environment, with dominant local serovars in urban areas of Sarawak.

scholarly journals Study of Legionella pneumophila Detection by Two Step Polymerase Chain Reaction

1993 ◽  
Vol 67 (11) ◽  
pp. 1062-1067
Author(s):  
Michio KOIDE ◽  
Atsushi SAITO ◽  
Futoshi HIGA ◽  
Yuuko YAMASHIRO ◽  
Tomohiko ISHIMINE ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Legionella Pneumophila ◽  
Chain Reaction ◽  
Polymerase Chain ◽  
Step Polymerase Chain Reaction
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