Increased rates of intense nasopharyngeal bacterial colonization of Vietnamese children with radiological pneumonia.

Increased rates of intense nasopharyngeal bacterial colonization of Vietnamese children with radiological pneumonia. Research Abstract Details 

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Increased rates of intense nasopharyngeal bacterial colonization of Vietnamese children with radiological pneumonia. Abstract Text:

Dang Duc Anh,Phan Le Thanh Huong,Kiwao Watanabe,Nguyen Thu Nguyet,Nguyen Thu Hien Anh,Ngo Thi Thi,Nguyen Tien Dung,Doan Mai Phuong,Susumu Tanimura,Yasushi Ohkusa,Tsuyoshi Nagatake,Hiroshi Watanabe,Kazunori Oishi,Dang Duc Anh,Phan Le Thanh Huong,Kiwao Watanabe,Nguyen Thu Nguyet,Nguyen Thu Hien Anh,Ngo Thi Thi,Nguyen Tien Dung,Doan Mai Phuong,Susumu Tanimura,Yasushi Ohkusa,Tsuyoshi Nagatake,Hiroshi Watanabe,Kazunori Oishi,Dang Duc Anh,Phan Le Thanh Huong,Kiwao Watanabe,Nguyen Thu Nguyet,Nguyen Thu Hien Anh,Ngo Thi Thi,Nguyen Tien Dung,Doan Mai Phuong,Susumu Tanimura,Yasushi Ohkusa,Tsuyoshi Nagatake,Hiroshi Watanabe,Kazunori Oishi,

Acute lower respiratory infection (ALRI), primarily pneumonia, is the leading cause of death in children under the age of five. Bacterial ALRI is preceded by asymptomatic bacterial colonization. Bacterial colonization, therefore, may have an important role in the development of pneumonia in children. This case-control study was conducted in order to determine if intense bacterial colonization was increased in the nasopharynx of pediatric patients with ALRI. One hundred-sixty four pediatric patients with ALRI and 70 healthy children < 5 years of age were enrolled in Hanoi, Vietnam between 2001 and 2002. Bacterial pathogens were isolated from nasopharyngeal secretions and quantitatively cultured. Of 164 patients, 91 were diagnosed as having radiological pneumonia (PN group) and 73 as having acute bronchitis (AB group). Intense growth of any bacterial pathogen (>or= 10(6) colony-forming units/ml) was highest in the PN group (49.4%), followed by the AB group (28.8%), with healthy children having the lowest (17.1%). Patients with intense bacterial growth were more likely to develop pneumonia, but not acute bronchitis, than were patients with light or no bacterial growth. The results of this case-control study suggest that the vertical spread of intense bacterial pathogens colonized in the nasopharynx to the lower airway leads to bacterial pneumonia in children under the age of five.

Increased rates of intense nasopharyngeal bacterial colonization of Vietnamese children with radiological pneumonia. Publishing Authors By Initials

DD Anh,Ple Huong,K Watanabe,NT Nguyet,NT Anh,NT Thi,NT Dung,DM Phuong,S Tanimura,Y Ohkusa,T Nagatake,H Watanabe,K Oishi,DD Anh,Ple Huong,K Watanabe,NT Nguyet,NT Anh,NT Thi,NT Dung,DM Phuong,S Tanimura,Y Ohkusa,T Nagatake,H Watanabe,K Oishi,DD Anh,Ple Huong,K Watanabe,NT Nguyet,NT Anh,NT Thi,NT Dung,DM Phuong,S Tanimura,Y Ohkusa,T Nagatake,H Watanabe,K Oishi,

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Increased rates of intense nasopharyngeal bacterial colonization of Vietnamese children with radiological pneumonia. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: The Tohoku journal of experimental medicine

VOLUME: 213

Page Numbers: 167-72

Journal Abbreviation: Tohoku J. Exp. Med.

ISSN: 0040-8727

DAY: 5

MONTH: Oct

YEAR: 2007

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LANGUAGE: eng

NlmUniqueID: 417355

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Grant and Affiliation Information for Increased rates of intense nasopharyngeal bacterial colonization of Vietnamese children with radiological pneumonia.

AFFILIATION: National Institute of Hygiene and Epidemiology, hanoi, Vietnam.

Country: Japan

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MEDLINETA: Tohoku J Exp Med

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