The changing pattern of clinical Mycobacterium avium isolation in the Netherlands

National Mycobacteria Reference Laboratory, The Netherlands. To assess the role of factors other than laboratory improvements in the increasing frequency of isolation of non-tuberculous mycobacteria (NTM) in the Netherlands; laboratory improvements are often considered key factors in this increase....

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Vydané v:The international journal of tuberculosis and lung disease Ročník 14; číslo 9; s. 1176
Hlavní autori: van Ingen, J, Hoefsloot, W, Dekhuijzen, P N R, Boeree, M J, van Soolingen, D
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: France 01.09.2010
Predmet:
Adolescent
Adult
Age Factors
Child
Child, Preschool
Databases, Factual
HIV Infections - epidemiology
Humans
Infant
Middle Aged
Mycobacterium avium Complex - isolation & purification
Mycobacterium avium-intracellulare Infection - epidemiology
Netherlands - epidemiology
Prevalence
Pulmonary Disease, Chronic Obstructive - epidemiology
Retrospective Studies
Young Adult
Netherlands
ISSN:1815-7920, 1815-7920
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Shrnutí:National Mycobacteria Reference Laboratory, The Netherlands. To assess the role of factors other than laboratory improvements in the increasing frequency of isolation of non-tuberculous mycobacteria (NTM) in the Netherlands; laboratory improvements are often considered key factors in this increase. Laboratory database study. All clinically isolated NTM referred to the national reference laboratory between January 2000 and January 2007 were retrieved from the laboratory database and categorised by species, patient age group and sample origin. Data were compared with national demographic data. Clinical Mycobacterium avium isolates accounted for most of the increase in referred NTM. The number of respiratory M. avium samples in patients aged >40 years increased over time. This age group increased in size during the study. In this age group, the prevalence of chronic obstructive pulmonary disease (COPD) increased during the study period. M. avium isolation from lymph nodes in children remained stable, whereas extra-pulmonary M. avium isolation in the middle age group, including human immunodeficiency virus associated bloodstream isolates, decreased. The increasing NTM notification in the Netherlands is unlikely to have been a result of laboratory improvements alone: the ageing population with an increasing prevalence of COPD is likely as important. Environmental characteristics may specifically favour M.avium.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1815-7920
1815-7920