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Volume 9, Number 1—January 2003


Persistence of W135 Neisseria meningitidis Carriage in Returning Hajj Pilgrims: Risk for Early and Late Transmission to Household Contacts

Annelies Wilder-Smith*1Comments to Author , Timothy M.S. Barkham*2, Sindhu Ravindran*3, Arul Earnest*4, and Nicholas I. Paton*5

Author affiliations: *Tan Tock Seng Hospital, Singapore

Main Article


Meningococcal carriage rates in returning Hajj pilgrims and household contacts of pilgrim carriers

Meningococcal carriage rate Returning Hajj pilgrims
(n=373) (%) Household contacts of pilgrim carriersa
(n=117) (%)
Overall 61 (16.4) 13 (11.1)
W135 clone 56 (15.0) 9 (7.7)

aA pilgrim carrier is a returning pilgrim with tonsillopharyngeal carriage of the W135 clone.

Main Article

1Originated the study idea; was responsible for study design, data collection, analysis, and interpretation; and wrote the final manuscript.

2Was responsible for the meningococcal cultures, serogrouping, and pulsed-field gel electrophoresis (PFGE), and contributed to the manuscript.

3Performed PFGE and made other contributions to the manuscript.

4Was responsible for data entry and statistical analysis.

5Contributed to the study design and data interpretation, and co-wrote the final manuscript.