Protective efficacy of permethrin-treated trousers against tick infestation in forestry workers

Bernd Roßbach 1, Peter Kegel 1, Ulrike Zier 1, Adrian Niemietz 1, Stephan Letzel 1
1 - Institute of Occupational, Social, and Environmental Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Germany
Ann Agric Environ Med
2014; 21 (4):
ICID: 1129920
Article type: Original article
 
 
introduction and objective. Prevention of tick borne diseases in forestry workers is essentially based on the use of appropriate clothing. The objective of this pragmatic, randomized, controlled trial was to assess the potential benefit of permethrin-treated working trousers for the prevention of tick infestation during forestry work.
materials and methods. N=164 male forestry workers were equipped for a period of 16 weeks with permethrin-treated (intervention group – I) or untreated work trousers (control group – II). Subgroups, according to the use of trousers with (I-1, II-1) or without cut protection lining (I-2, II-2) were constituted. Tick infestation (quantity of ticks on the body surface) was assessed by questionnaire after 16 workdays. Control and intervention groups were compared by calculating the infestation rate (percentage of subjects with ticks) and the average number of ticks per workday.
results. The infestation rate in the intervention group was significantly lower than in the control group (36.6 vs. 63.4%, p=0.001; Fisher-test). Further analysis revealed a significant reduction of tick infestation by permethrin treatment only for subjects wearing trousers without the cut protection lining (I-2: 34.2 vs. II-2: 80.0%, p<0.001), while users of cut protection trousers did not benefit from such treated trousers (I-1: 38.6 vs. II-1: 47.6%, n.s.). Similar results were found for comparisons based on the average number of ticks per workday.
conclusions. The use of permethrin-treated trousers does not completely prevent tick infestations. Improvement of tick protection has been shown only for some applications, but not in general. Additional prevention measures are therefore still indispensable.

DOI: 10.5604/12321966.1129920
PMID 25528907 - click here to show this article in PubMed
  FULL TEXT STATS

Recommend this article to:

Name:
E-mail:
From:
Language:


Related articles in IndexCopernicus™
     randomized control trial [2 related records]
     Permethrin [36 related records]
     borreliosis [22 related records]
     Tick-Borne Diseases [10 related records]
     Protective Clothing [80 related records]
     forestry worker [0 related records]



 

Related articles

A Shaw, ,
Protective clothing for pesticide operators: part ...
A systematic approach was taken to develop a database for protective clothing for pesticide operators; results are reported as a two-part series. Part I describes the research studies that led to identification of a pesticide formulation that could s...
ABSTRACT
A Shaw, P Schiffelbein,
Protective clothing for pesticide operators: part ...
Development of objective measurements is an important requirement for establishing performance-based standards for protective clothing used while handling pesticide. This study, the second in a two-part series, reports on the work completed to evalua...
ABSTRACT
P Gilewicz, A Cichocka ,
Underwear for Protective Clothing Used by Foundry ...
Foundry worker activity involves remaining in a high temperature while working close to a melting furnace. Special clothing made from aluminised fabrics for this action ensures protection against high temperature. However, the problem is that the exi...
ABSTRACT