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KMID : 1143420190120331189
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Public Health Weekly Report
2019 Volume.12 No. 33 p.1189 ~ p.1201
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Analysis of surveillance results of pathogens from acute pneumoniae patients in children
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Jung Sang-Oun
Kim So-Hyeon
Kim Hwan-Hee
Lee Chae-Young
Yoo Jae-Il
Hwang Kyu-Jam
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Abstract
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To know distribution status of pathogen in pediatric pneumonia and to confirm resistance rate for antibiotics of isolated bacterial pathogen, we had constructed hospital-based surveillance network with 27 regional cooperative hospitals, collected specimens from pneumonia patients in child with clinical signs, and performed laboratory tests for detection of
bacterial/viral pathogen. If bacterial pathogens were isolated, their drug resistant patterns were confirmed by antibiotics
susceptibility test. As the results, pathogens were identified from 92.2% of the collected specimens. The confirmed rate of
viral pathogen (74.8%) was slightly higher than bacterial pathogen (55.6%). In the case of bacteria. Mycoplasma
pneumoniae showed most high detection rate, followed by Staphylococcus aureus and Streptococcus pneumoniae . In virus, the highest one was human rhinovirus, followed by respiratory syncytial virus, metapneumovirus, adenovirus, bocavirus, parainfluenza virus, influenza virus, and coronavirus. In the analysis of monthly distribution status, positive rate of M. pneumoniae and S. pneumoniae increased in November 2018 and April 2019. Haemophilus influenza showed increased positive rate in Arpil and May 2019. In the case of viral pathogens, respiratory syncytial virus was detected high in November and December 2018. Then detection frequency of human rhinovirus was increased from February to May 2019. Metapneumovirus and parainfluenza virus also slightly increased in April 2019. Drug resistant pattern in bacterial
pathogens, there was no resistant strain in Pseudomonas aeruginosa . However, resistance in ampicillin and amoxicillin/
clavulanate was confiremd in H. influenzae . S. pneumoniae also showed high resistance in erythromycin, azithromycin,
cefaclor and cefuroxime. High resistance in ampicillin and cefazolin was observed in Klebsiella pneumoniae and also high
resistance in ampicillin was confirmed in S. aures . In the case of M. pneumoniae , the ratio of genetic variant type in 23S rRNA gene related to macrolide resistant was confirmed as 50.4%. As the conclusion, the analysis results obtained from this pathogen surveillance study in pediatric pneumonia will be used as a scientific basis for policy making of management of pediatric respiratory diseases.
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KEYWORD
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Pediatric pneumonia, Bacteria, Virus, Pathogen distribution, Antibiotics resistance
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