Volume 23, Issue 2 p. 163-166

Sensitivity to bites by the bedbug, Cimex lectularius

K. REINHARDT

Corresponding Author

K. REINHARDT

Department of Animal and Plant Sciences, University of Sheffield, Sheffield, U.K.

Dr Klaus Reinhardt, Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, U.K. Tel.: + 44 114 222 4778; Fax: + 44 114 222 0002; E-mail: [email protected]Search for more papers by this author
D. KEMPKE

D. KEMPKE

Department of Animal and Plant Sciences, University of Sheffield, Sheffield, U.K.

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R. A. NAYLOR

R. A. NAYLOR

Department of Animal and Plant Sciences, University of Sheffield, Sheffield, U.K.

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M. T. SIVA-JOTHY

M. T. SIVA-JOTHY

Department of Animal and Plant Sciences, University of Sheffield, Sheffield, U.K.

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First published: 26 May 2009
Citations: 62

Abstract

Abstract Bedbugs are a public health problem and can cause significant economic losses, but little is known about the effects of bites on humans. We reviewed case reports and published papers on bedbug bites to assess the empirical basis of the commonly cited figure that only ∼ 80% of the population are sensitive to bedbug bites. We found the sensitivity estimate to be based on only one study carried out 80 years ago. However, this study did not account for the now well-established fact that only repeated exposure to external allergens leads to skin reactions. In our sample, 18 of 19 persons showed a skin reaction after bedbug exposure, but in most cases only after repeated controlled exposure. With repeated exposure, the latency between bite and skin reactions decreased from ∼ 10 days to a few seconds. Our results are relevant for the hospitality industry, where apparently increasing infestation rates are likely to lead to an increase in the number of tourists and hotel employees exposed to bedbugs. Medical and public health professionals may expect to see an increase in the prevalence of people with bedbug bite sensitivity. The significance of the delayed reaction time of skin to bites may also have implications in litigation cases where people seek compensation.