scholarly journals Molecular Diagnosis of Atypical Pneumonia Infection in Children Presenting with Acute Respiratory Tract Infection Attending Yangon Children’s Hospital

2019 ◽  
Vol 31 (2) ◽  
pp. 116-119
Keyword(s):  
Tract Infection ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Mycoplasma Pneumoniae ◽  
Chlamydophila Pneumoniae ◽  
Acute Respiratory Tract Infection ◽  
High Morbidity ◽  
Atypical Pneumonia ◽  
Children's Hospital ◽  
Children’S Hospital

Acute respiratory tract infection (ARI) is a clinical condition which causes high morbidity and mortality, especially in infants and young children. Pneumonia is a common complication of respiratory tract infection. Atypical pneumonia, which is commonly caused by Mycoplasma pneumoniae, Chlamydophila pneumoniae and Legi-onella pneumophila, is difficult to be detected because the causal bacteria cannot be diagnosed by routine culture method and presenting with non-specific clinical symptoms. This study aimed to diagnose the atypical pneumonia infection in children presenting with ARI attending Yangon Children’s Hospital during 2014-15 by using multiplex polymerase chain reaction (M-PCR). The bacterial DNA was extracted from nasopharyngeal swab samples by using Qiagen DNA minikit and detected by M-PCR. Of 245 patients with ARI, 140(57%) were males and 105(43%) were females. Eleven samples (4.4%) were positive for atypical pneumonia infection, among which 4(1.6%) were Mycoplasma pneumoniae,5(2%) were Chlamydophila pneumoniae and 2(0.8%) were Legionella pneumophila. The atypical pneumonia cases were mostly seen among the age of 1 to 5 years and sex distribution was nearly equal. The infected cases were detected from pneumonia (36.4%), severe pneumonia (27.3%), viral-induced wheeze (18.2%), severe bronchiolitis (9.1%) and bronchiolitis (9.1%). This study highlights the role of atypical pneumonia infection in ARI cases among children.

scholarly journals New Research Progress in Mycoplasma pneumoniae Infection

2015 ◽  
Vol 4 (4) ◽  
pp. 91-95
Author(s):  
Fengtan Li
Keyword(s):  
Tract Infection ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Mycoplasma Pneumoniae ◽  
Infectious Agent ◽  
Research Progress ◽  
School Age Children ◽  
Atypical Pneumonia ◽  
New Research ◽  
Clinical Prevention

AbstractAs an important pathogen of respiratory tract infection,Mycoplasma pneumoniae (MP)may not only lead to primary atypical pneumonia but also cause systemic organ conditions. MP causes respiratory tract infection among school-age children and is also an important infectious agent for adult respiratory tract infection. Intensive studies on roles ofMPinfection on the innate immune system significantly aid development of targeted therapy drugs. Epidemic studies on associated symptoms also help in clinical prevention and diagnosis and show importance to personalized treatment utilizing different drugs for different patients. This study summarizes the abovementioned three points based onMPstudies in recent years.

scholarly journals Epidemiology and Molecular Identification of Mycoplasma pneumoniae associated respiratory tract, Zhejiang province, China, 2008-2017

2019 ◽  
Author(s):  
Qian Jiang ◽  
Zhao Zhao ◽  
Fangfang Yang ◽  
Yumei Ge
Keyword(s):  
Tract Infection ◽  
Early Diagnosis ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Mycoplasma Pneumoniae ◽  
Acute Respiratory Tract Infection ◽  
Zhejiang Province ◽  
Taqman Probe ◽  
Positive Rate ◽  
Tract Infections

Abstract Background Mycoplasma pneumoniae is a common cause of respiratory infections in humans. The aim of this study was to investigate the infection of Mycoplasma pneumoniae (MP) in patients with acute respiratory tract infections in Zhejiang Province from 2008 to 2017, and to provide evidence for the early diagnosis and prevention of MP pneumonia. Methods MP-DNA was detected in nasopharyngeal swabs of patients with acute respiratory tract infection by real-time fluorescent PCR (Taqman probe). Statistical analysis and epidemiological investigation were carried out on the test results. Results There were 10296 patients with acute respiratory tract infection in Zhejiang People's Hospital from 2008 to 2017, including 4387 females and 5909 males. A total of 1251 MP-DNA positive patients were detected, with a total positive rate of 12.2% (1251/10296). Among 1251 patients with M. pneumoniae infection, 571 were female positive, with an average positive rate of 13.0% (571/4387), 680 were male positive, with a positive rate of 11.5% (680/5909). From 2008 to 2017, the positive rates were 22.8% (33 cases), 20.9% (211 cases), 20.9% (350 cases), 5.5% (70 cases), 11.7% (136 cases), 15.2% (190 cases), 7.8% (94 cases), 5.9% (62 cases), 7.8% (56 cases) and 6.0% (49 cases), respectively. Of 1251 MP-DNA positive patients, 1243 (99.4%) were younger than 18 years old. Conclusions MP infection mainly occurs in the age below 18 years old, suggesting that early diagnosis and prevention of MP infection in adolescents should be emphasized.

Effect of vitamin A supplementation on diarrhoea and acute respiratory tract infection in children

1994 ◽  
Vol 10 (1) ◽  
pp. 57-61 ◽  
Author(s):  
R. Biswas ◽  
A. B. Biswas ◽  
B. Manna ◽  
S. K. Bhattacharya ◽  
R. Dey ◽  
...  
Keyword(s):  
Tract Infection ◽  
Vitamin A ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Acute Respiratory Tract Infection ◽  
Vitamin A Supplementation

scholarly journals Mycoplasma pneumoniae Respiratory Tract Infection Prevailing among Infants at a Nursery School

1992 ◽  
Vol 66 (11) ◽  
pp. 1566-1571
Author(s):  
Kazuo MIMURA ◽  
Kumiko SUGITA ◽  
Kazuo TABUKI ◽  
Tadafumi NISHIMURA
Keyword(s):  
Tract Infection ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Mycoplasma Pneumoniae ◽  
Nursery School

scholarly journals Respiratory syncytial virus genotypes NA1, ON1, and BA9 are prevalent in Thailand, 2012–2015

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3970 ◽  
Author(s):  
Ilada Thongpan ◽  
John Mauleekoonphairoj ◽  
Preeyaporn Vichiwattana ◽  
Sumeth Korkong ◽  
Rujipat Wasitthankasem ◽  
...  
Keyword(s):  
Respiratory Syncytial Virus ◽  
Tract Infection ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Acute Respiratory Tract Infection ◽  
Glycosylation Site ◽  
Predicted Amino Acid Sequence ◽  
Glycoprotein Gene ◽  
Virus Genotypes ◽  
Syncytial Virus

Respiratory syncytial virus (RSV) causes acute lower respiratory tract infection in infants and young children worldwide. To investigate the RSV burden in Thailand over four consecutive years (January 2012 to December 2015), we screened 3,306 samples obtained from children ≤5 years old with acute respiratory tract infection using semi-nested reverse-transcription polymerase chain reaction (RT-PCR). In all, 8.4% (277/3,306) of the specimens tested positive for RSV, most of which appeared in the rainy months of July to November. We then genotyped RSV by sequencing the G glycoprotein gene and performed phylogenetic analysis to determine the RSV antigenic subgroup. The majority (57.4%, 159/277) of the RSV belonged to subgroup A (RSV-A), of which NA1 genotype was the most common in 2012 while ON1 genotype became prevalent the following year. Among samples tested positive for RSV-B subgroup B (RSV-B) (42.6%, 118/277), most were genotype BA9 (92.6%, 87/94) with some BA10 and BA-C. Predicted amino acid sequence from the partial G region showed highly conserved N-linked glycosylation site at residue N237 among all RSV-A ON1 strains (68/68), and at residues N296 (86/87) and N310 (87/87) among RSV-B BA9 strains. Positive selection of key residues combined with notable sequence variations on the G gene contributed to the continued circulation of this rapidly evolving virus.

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