Volume 77, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


Although body louse is a well-known vector of trench fever, the growth kinetics of in body lice has not been fully understood. We performed a quantitative analysis of bacterial multiplication rate. started proliferation in body lice 4 days after ingestion and was constantly excreted in the feces for at least 3 weeks. The number of bacteria in feces reached the maximum 10/louse per day on Day 15. The doubling time of estimated from logistic regression formula was 21.3 hours. Scanning electron microscopy showed the presence of bacterial masses in feces. Immunofluorescent study using specific monoclonal antibody confirmed identification of . Such an explosive multiplication rate and active excretion of from the body lice could be related to epidemics of trench fever in developed countries.


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  • Received : 19 Jan 2007
  • Accepted : 02 Jun 2007

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