Preliminary Data on Legionella Detection in Water Distribution Systems in Cameroon  

作　　者：Marguerite Ndayo Wouafo Ariane Nzouankeu Caroline Kemadjou Guy Joseph Ejenguele Dominique Baudon 

机构地区：[1]Laboratoire d＇Hygiene Environnement Section Microbiologie, Centre Pasteur du Cameroun, B.P. 1274, Yaounde, Cameroun

出　　处：《Journal of Life Sciences》2011年第10期801-805,共5页生命科学（英文版）

摘　　要：After the declaration of the first case of Legionnaire＇s disease in Cameroon in 2007, the Centre Pasteur of Cameroon implemented the detection method for Legionella. The introduction of this new method was put in places in order to investigate Legionella spp. colonization of water distribution systems （WDS） of large buildings including hospitals, hotels and Off Shore Exploitations Sites （OSES） in an attempt to identify risk factors for Legionella spp. Water systems of 6 hotels, 6 hospitals and 6 ships were investigated for the presence of Legionella spp.. A total of 130 samples were collected, 77 from hotels, 27 from hospitals and 26 from ships. 51 Legionella spp. were isolated from 41 （31.54%） water samples. Of a total of 51 positive isolates, 40/51 （78.4%） were L. pneumophila with 21 （52.5%） Legionellapneumophila serogroup （sg） 1, 16 （40%） L. pneumophila sg 5, 2 （5%） L. pneumophila sg 6, 1 （2.5%） L. pneumophila sg 7 and 11/51 Legionella spp. with 10 （90%） L. anisa, 1 （10%） Legionella dumoffii. 5 L. pneumophila sg 1 were associated with 5 L. pneumophila sg 5 and 4 L. pneumophila sg 1 were associated with 4 L. anisa. These results showed that WDS of hospitals, hotels and ships can be heavily colonized by Legionella spp. and may present a risk of Legionnaires＇ disease. Based on these preliminary results, we have just put in place a Legionella survey protocol in Cameroon.

关 键 词：Legionnaire＇s disease INVESTIGATION LEGIONELLA COLONIZATION water distribution systems. 

分 类 号：TU991.24[建筑科学—市政工程] TQ085.4[化学工程]