May 10, 2013

Changing emergence of Shigella sero-groups in Bangladesh: observation from four different diarrheal disease hospitals

PloS One
Sumon Kumar DasRubhana Raqib

Abstract

Shigellosis continues to be a public health challenge for developing countries, including Bangladesh. The aim of the study is to demonstrate recent changes in Shigella sero-groups and their geographical diversity. Data were extracted from data archive of four diarrheal disease surveillance systems. A 2% sub sample from urban Dhaka Hospital (2008-2011; n = 10,650), and 10% from urban Mirpur Treatment Centre (2009-2011; n = 3,585), were enrolled systematically; whereas, all patients coming from the Health and Demographic Surveillance System area in rural Matlab (2008-2011; n = 6,399) and rural Mirzapur (2010-2011; n = 2,812) were included irrespective of age, sex, and disease severity. A fresh stool specimen was collected for identification of Shigella spp. Of them, 315 (3%) were positive for Shigella in Dhaka, 490 (8%) from Matlab, 109 (3%) from Mirpur and 369 (13%) from Mirzapur and considered as analyzable sample size. Among all Shigella isolates regardless of age, significant decreases in percentage of S. flexneri over time was observed in Mirpur (55→29%; p value of χ(2)-for trend = 0.019) and Mirzapur (59→47%; p = 0.025). A non-significant decrease was also seen in Dhaka (58→48%), while in Matlab there was a non-significant ...Continue Reading

  • References14
  • Citations18

References

  • References14
  • Citations18

Citations

Mentioned in this Paper

Wasting
Health Center
Study
Patterns
Serology (Antibodies and Most Antigens Except Blood Bank and Infectious Agents)
Pathogenic Organism
Vaccines
Dysentery, Bacillary
Shigella sonnei bacterium
Etiology

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