Increasing microbiological confirmation and changing epidemiology of meningococcal disease on Merseyside, England

Autor: A. P. J. Thomson, F. A. I. Riordan, P. Shears, C. A. Hart, J M Fellick, J. A. Sills, Enitan D. Carrol
Rok vydání: 2000
Předmět:
Zdroj: Clinical Microbiology and Infection. 6(5):259-262
ISSN: 1198-743X
DOI: 10.1046/j.1469-0691.2000.00078.x
Popis: Objectives To determine, for the last 5 years in children on Merseyside with clinical meningococcal disease (MCD), the impact on diagnostic yield of newer bacteriologic methods; bacterial antigen detection (AD) and polymerase chain reaction (PCR). Methods Prospective data collection at Royal Liverpool Children's Hospital over two epochs: 1 September 1992 to 30 April 1994 (epoch A, n = 126) and 17 November 1997 to 15 September 1998 (epoch B, n = 85). Results Epoch Awas compared with epoch B. Diagnosis was confirmed by detection of meningococci in 78 of 126 (61.9%) versus 64 of 85 (75.3%, P = 0.04), but with a significantly lower rate of positive blood and cerebrospinal fluid culture in the later epoch. The proportion of cases receiving penicillin pretreatment was unchanged at 32%, but the proportion undergoing lumbar puncture decreased significantly. Median ages were higher in epoch B: 1.7 years versus 2.49 years ( P = 0.013, Mann-Whitney). There was a significant increase in the proportion of cases due to serogroup C (14/78 (18%) versus 30/64 (46.9%), P = 0.001). Conclusions Culture detection of meningococci from children with MCD has reduced, as less lumbar punctures are done. However, improved diagnosis by PCR and AD has increased microbiological confirmation overall. Serogroup C disease and the median age of cases continue to rise.
Databáze: OpenAIRE