Studies on the resistance of human body louse and head louse to insecticidal powder
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چکیده
منابع مشابه
Acinetobacter baumannii in Human Body Louse
While we were isolating Bartonella quintana from body lice, 40 Acinetobacter baumannii strains were also isolated and genotyped. One clone was unique and the other was ampicillin susceptible. A. baumannii DNA was later detected in 21% of 622 lice collected worldwide. These findings show an A. baumannii epidemic in human body lice.
متن کاملLetter: High-level of Heteroplasmy in the Mitochondrial Cox1- Minichromosome of the Human Body Louse, Pediculus humanus, and the Human Head Louse, Pediculus capitis
The mitochondrial (mt) genome of bilateral animals typically consists of a single chromosome, ~16 kb long, and contains 37 genes. Variation in mt gene sequence within an individual, i.e. heteroplasmy, is common in bilateral animals but usually occurs at very low levels. In the lineage that led to the human body louse, the typical mt chromosome has fragmented into 18 minichromosomes: each minich...
متن کاملThe body louse as a vector of reemerging human diseases.
The body louse, Pediculus humanus humanus, is a strict human parasite, living and multiplying in clothing. Louse infestation is associated with cold weather and a lack of hygiene. Three pathogenic bacteria are transmitted by the body louse. Borrelia recurrentis is a spirochete, the agent of relapsing fever, recently cultured on axenic medium. Historically, massive outbreaks have occurred in Eur...
متن کاملPermethrin Resistance Due to Knockdown Gene Mutations is Prevalent in Human Head Louse Populations
Permethrin resistance in head lice is mainly conferred by the knockdown resistance (kdr) trait, a voltagesensitive sodium channel (VSSC) insensitivity factor. Three VSSC mutations have been identified and confirmed to reduce the sensitivity of VSSC to permethrin. A step-wise resistance monitoring system has been established based on molecular resistance detection techniques. Quantitative sequen...
متن کاملTreatment Resistance in Louse Control
While there problems facing the physician in treating individual patient for lice/ such choice of pediculicide, from the public health view greatest is lice control in entire populations. This paper deals mainly with problems encountered in delousing campaigns. These may be associated with the organization and implementation of delousing under difficult conditions the problems of louse resistan...
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ژورنال
عنوان ژورنال: Medical Entomology and Zoology
سال: 1955
ISSN: 0424-7086,2185-5609
DOI: 10.7601/mez.6.57_1