Blood-sucking lice of humans have extensively fragmented mitochondrial (mt) genomes. Human head louse and body louse have their 37 mt genes on 20 minichromosomes. In human pubic louse, the 34 mt genes known are on 14 minichromosomes. To understand the process of mt genome fragmentation in the blood-sucking lice of mammals, we sequenced the mt genomes of the domestic pig louse, Haematopinus suis...

BACKGROUND Pediculosis (head lice) is considered as one of the most common health problems of the students in primary schools. The purpose of this study was to survey the prevalence rate of the infestation in the schools of Gonabad City (south of Khorasan-e-Razavi Province) to prevent its outbreak by on-time planning. METHODS In this retrospective-descriptive study, data were collected from t...

The increasing resistance of head lice Pediculus humanus capitis to many drugs has highlighted the need for new alternatives control in adults. effect two types extracts (aqueous and alcoholic) Citrullus colocynthis fruit on adult was tested vitro. results showed that alcoholic extract with a concentration 20% similar efficacy killing Natroba 9% w/w, values ranging between 87% 98% within 18 min...

background: head lice infestation caused by pediculus humanus var capitis ( pediculus capitis ) is a worldwide public health concern that affects mostly school aged children. this descriptive, analytical study was carried out in 2008 to determine the prevalence of pediculosis capitis and some risk factors among primary-school pupils in bahar, hamadan province, iran. methods: we selected 900 pup...

Though pediculosis, more commonly known as lice, is extremely common and has nothing to do with hygiene, misconceptions persist. Lice, constructed a highly contagious illness, of nuisance, most contagion resulting from head-to-head contact, 3% environmental causes; still, the condition tends be associated negative behavior like uncleanliness neglect. There very little study it in U.S. save for ...

Bilateral animals are featured by an extremely compact mitochondrial (mt) genome with 37 genes on a single circular chromosome. The human body louse, Pediculus humanus, however, has its mt genes on 20 minichromosomes. We sequenced the mt genomes of two other human lice: the head louse, P. capitis, and the pubic louse, Pthirus pubis. Comparison among the three human lice revealed the presence of...

Twenty six male and female patients aged 5 to 17 years who had head lice infestation confirmed by eggs presence and received treatments with a single 200 mu/kg oral dose of ivermectin in open fashion. At day 14 after treatment, 20 responded to the treatment (77%), and 6 patients (23%) presented with a complete disappearance of eggs and all clinical symptoms. At day 28, 7 patients were healed (2...

New alternative insecticides are necessary for the chemical control of head lice. In this study the fumigant knockdown time 50% (KT50) and repellency index (RI) of three aliphatic lactones was compared with two essential oils and DDVP, against permethrin-resistance Pediculus humanus capitis from Argentina. In the fumigant assay, none of the lactones were effective compared to the highest activi...