Potential role of head lice, Pediculus humanus capitis, as vectors of Rickettsia prowazekii

Robinson, D., Leo, N., Prociv, P. and Barker, S. C. (2003) Potential role of head lice, Pediculus humanus capitis, as vectors of Rickettsia prowazekii. Parasitology Research, 90 3: 209-211. doi:10.1007/s00436-003-0842-5


Author Robinson, D.
Leo, N.
Prociv, P.
Barker, S. C.
Title Potential role of head lice, Pediculus humanus capitis, as vectors of Rickettsia prowazekii
Journal name Parasitology Research   Check publisher's open access policy
ISSN 0932-0113
Publication date 2003
Sub-type Article (original research)
DOI 10.1007/s00436-003-0842-5
Volume 90
Issue 3
Start page 209
End page 211
Total pages 3
Place of publication New York
Publisher Springer-Verlag
Collection year 2003
Language eng
Subject C1
270300 Microbiology
780105 Biological sciences
Abstract Since the pioneering work of Charles Nicolle in 1909 [see Gross (1996) Proc Natl Acad Sci USA 93:10539-10540] most medical officers and scientists have assumed that body lice are the sole vectors of Rickettsia prowazekii, the aetiological agent of louse-borne epidemic typhus (LBET). Here we review the evidence for the axiom that head lice are not involved in epidemics of LBET. Laboratory experiments demonstrate the ability of head lice to transmit R. prowazekii, but evidence for this in the field has not been reported. However, the assumption that head lice do not transmit R. prowazekii has meant that head lice have not been examined for R. prowazekii during epidemics of LBET. The strong association between obvious (high) infestations of body lice and LBET has contributed to this perception, but this association does not preclude head lice as vectors of R. prowazekii. Indeed, where the prevalence and intensity of body louse infections may be high (e.g. during epidemics of LBET), the prevalence and intensity of head louse infestations is generally high as well. This review of the epidemiology of head louse and body louse infestations, and of LBET, indicates that head lice are potential vectors of R. prowazekii in the field. Simple observations in the field would reveal whether or not head lice are natural vectors of this major human pathogen.
Keyword Parasitology
Epidemic Typhus
Trench Fever
Outbreak
Burundi
Diseases
Russia
Louse
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 01:18:45 EST