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Query: UMLS:C0026936 (Mycoplasma)
 14,761 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An epidemiological survey was carried out at two centres in the north of England (Liverpool and Sunderland). One hundred and twenty patients were included in this survey to determine the relative incidence of Mycoplasma pneumoniae infections in patients who present to their physician with an acute lower respiratory tract infection. Data were available at the end of the survey in 115 patients. Only one patient had a positive test for M.pneumoniae. There were nine patients who had a positive antibody test for either influenza or para-influenza. Four patients had a positive test for respiratory syncytial viruses. This survey points out the problems in the clinical diagnosis of respiratory infections in general practice.
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PMID:A general practice survey of the incidence of Mycoplasma pneumoniae infections. 95 1

Paired sera from 101 Malaysian children aged up to 10 years and suffering from respiratory illnesses were examined serologically for evidence of respiratory viral infections. Of these children, 32.6% showed rising antibody titres for one or more of the test agents. Respiratory syncytial virus appeared to be the main respiratory pathogen involved, followed by Mycoplasma pneumoniae, parainfluenza viruses, adenoviruses, and influenza A virus. These findings are generally similar to those reported by others in temperate and tropical countries.
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PMID:Respiratory virus disease in Malaysian children: a serological study. 108 8

Since 1969, the incidence of acute respiratory diseases (ARD) in the Czech Socialist Republic of Czechoslovakia has been monitored by a special programme based on reports from 85 district epidemiological centres. In this paper, the incidence of ARD in three age groups, together with the incidence of complications and death rates, are presented for each season during the period 1969-1974. The significance of epidemiological observations and laboratory investigations relating to influenza and other ARD agents, such as parainfluenza viruses, adenoviruses, rhinoviruses, RS virus, coronaviruses, and Mycoplasma pneumoniae, is discussed.
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PMID:Influenza and other actue respiratory diseases in the Czech Socialist Republic, 1969-1974. 108 12

A total of 43 section observations on acute respiratory viral diseases in children aged between 13 days to 13 years are described. Using the direct and indirect fluorescent antibody test in 11 observations M. pneumoniae antigen was detected; in 4 observations this antigen was represented as monoantigen, and in 7 observations--in association with viruses of influenza, parainfluenza and adenovirus. The characteristic features of mycoplasma pneumoniae were noted; very high blood filling of vessels of all calibres with the involvement of the system of microcirculation of the lungs, with phenomana of pronounced dilatation of the capillary net and with a tendency to thrombo-formation; diffuse lesions (dystrophic and inflammatory changes) of large and small bronchi and bronchioles; plasmocellular reaction in interstitia of the lungs, perbronchial follicles and bifurcated lymphatic nodes; the presence of M. pneumoniae antigen in histological sections of the lungs. The author thinks it advisable to discard the term "M. pneumoniae-pneumonia" and replace it by "M. pneumoniae-infection" with predominent localization of the process in the lungs.
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PMID:[Pathological anatomy of pneumonia in Mycoplasma pneumoniae infection in children]. 109 26

One hundred eighty children hospitalized for acute respiratory disease were studied in Cali, Colombia. In the majority of patients, pneumonia was the reason for hospitalization and remained the final diagnosis. Fifty-one cases of pneumonia of indeterminate etiology comprised the largest single diagnostic category, followed by 38 cases of pneumonia associated with measles, and 22 cases assocaited with serologic evidence of infection with other viral agents or Mycoplasma pneumoniae. Etiologic diagnosis could be assigned with a reasonable degree of confidence in 116 of the 180 patients (64%). The laboratory procedure found most likely to provide the etiologic diagnosis in this series was paired sera specimens for demonstration of rise in antibody titer against the common viral respiratory pathogens. Those most frequently implicated serologically as etiologic agents in the cases studied were, in order of decreasing frequency, measles, influenza, parainfluenza, and adenoviruses.
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PMID:Etiology of respiratory tract infections in children in Cali, Colombia. 124 87

The content of brain and vascular plexus gangliosides and their composition have been studied in 15 cases of meningoencephalitis of various etiology and degree of disease. The most pronounced decrease of ganglioside concentration was found in brain of children, who died from herpes virus infection. Decrease of ganglioside content was revealed in brain grey matter of patients with influenza virus or meningococcus infection, but not in cases of mycoplasma infection. These data provide evidence of nerve cell destruction due to meningoencephalitis of various etiology. The biochemical data obtained are in good agreement with the results of the brain of children infection by herpes virus (increase of GD1b content in grey matter). Ganglioside content in vascular plexes of patients with meningoencephalitis was found to be, on the contrary, much higher (ca 4 times) than in the controls. The higher the lesion of choroid plexes in meningoencephalitis is, the higher the ganglioside content in them is.
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PMID:Study of brain and vascular plexus gangliosides in meningoencephalitis of various etiology. 130 31

The epidemiological, clinical and virological features of 1220 children with acute bronchiolitis admitted to the Prince of Wales Hospital, Hong Kong, from 1985 to 1988 are reported. They accounted for 6.6% of total paediatric admissions and provided a case incidence of bronchiolitis requiring admission to hospital of approximately 21 per 1000 children 0-24 months of age. The clinical course and outcome was in general benign. The average hospital stay was 5 days and there were no deaths. Ten per cent of patients were repeatedly admitted to hospital with recurrent wheezing after discharge. Two infants developed bronchiolitis obliterans. Respiratory syncytial virus (RSV) was shown by direct immunofluorescence, virus culture and serology to be the commonest cause of acute bronchiolitis in Hong Kong. Other aetiological agents included parainfluenza and influenza viruses, adenoviruses, and Mycoplasma pneumoniae. In contrast to western countries, a seasonal variation of bronchiolitis was found with a peak incidence in the summer months. The significance of these observations is discussed.
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PMID:Epidemiology and aetiology of acute bronchiolitis in Hong Kong infants. 131 77

Atypical pneumonias are caused by mycoplasma, chlamydia and legionella species. From a clinical point of view the disease is comparable to influenza-like infections. Macrolide antibiotics covered the species which are most important. Especially new macrolides displayed better pharmacokinetic properties, allowing dose reduction and reduced frequency of intake. For legionella infections also therapy with modern quinolones is possible.
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PMID:[Ambulant atypical pneumonia: clinical diagnosis and therapy]. 139 35

Pneumonias occupy a prominent situation among lower respiratory tract infections where they are remarkable for their potential mortality and for our relative knowledge of the responsible micro-organisms. Analysis and synthesis of each series published must answer several questions, such as: what are the lung diseases considered? which investigations have been performed? which criteria of imputability have been used? in which patients has the study been carried out? in which place, which period and which structure? In spite of methodological lacunae and of the inhomogeneous answers to the questions asked, there is some concordance between the series found in the literature. Thus, more than 90% of community-acquired pneumonias with microbiological identification are caused by Streptococcus pneumoniae, Haemophilus influenzae, Mycoplasma pneumoniae, Legionella pneumophila, Chlamydia psittaci (or pneumoniae), or Influenza A virus.
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PMID:[Epidemiology of micro-organisms responsible for community-acquired pneumonia]. 143 60

Acute lower respiratory tract infections are one of the major causes of childhood morbidity and mortality in developing countries. This study was undertaken at Hacettepe University Children's Hospital to determine the role of viruses and Mycoplasma pneumoniae in respiratory tract infections in children. Eighty-three patients with lower respiratory tract infections were selected at random from among the children admitted to the hospital for evaluation of respiratory symptoms. Acute and convalescent serum samples were collected from all patients for the complement-fixation test and the following antigens were used: respiratory syncytial virus (RSV), adenovirus, parainfluenza virus Type 1, influenza viruses A and B, and Mycoplasma pneumoniae. The test was positive in 39 of 83 patients (47%), and RSV was the most frequent agent detected serologically (15.7%).
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PMID:The role of viruses and Mycoplasma pneumoniae in lower respiratory tract infections in childhood. 144 Sep 53


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