نتایج جستجو برای: sand fly larvae

تعداد نتایج: 90720  

2017
Patrick H Kelly Sarah M Bahr Tiago D Serafim Nadim J Ajami Joseph F Petrosino Claudio Meneses John R Kirby Jesus G Valenzuela Shaden Kamhawi Mary E Wilson

The vector-borne disease leishmaniasis, caused by Leishmania species protozoa, is transmitted to humans by phlebotomine sand flies. Development of Leishmania to infective metacyclic promastigotes in the insect gut, a process termed metacyclogenesis, is an essential prerequisite for transmission. Based on the hypothesis that vector gut microbiota influence the development of virulent parasites, ...

2016
Ismail Lafri Lionel Almeras Idir Bitam Aurelia Caputo Amina Yssouf Claire-Lise Forestier Arezki Izri Didier Raoult Philippe Parola Alvaro Acosta-Serrano

BACKGROUND Phlebotomine sand flies are known to transmit Leishmania parasites, bacteria and viruses that affect humans and animals in many countries worldwide. Precise sand fly identification is essential to prevent phlebotomine-borne diseases. Over the past two decades, progress in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) has emerged as an acc...

Journal: :International Journal of Health Geographics 2008
David Claborn Penny Masuoka Meredith Morrow Lisa Keep

BACKGROUND Nearly 1300 cases of leishmaniasis have been identified in American military personnel deployed to Iraq and Afghanistan. The symptoms of this disease can range from a mild, self-limiting cutaneous infection to a deadly visceral infection and are not prevented by chemoprophylaxis or immunization. Effective treatments, however, are available. The disease-causing parasite is spread thro...

Journal: :iranian journal of public health 0
a mehrabi tavana

little is known about sand fly fever with manifestations such as severe fever, headache and photophobia at the frontiers before the imposed war iraq against iran (1980-1988). in this article the seroepidemiological study of sand fly fever in different western provinces of iran were investigated during imposed war iraq against iran from march 1987 to march 1988. seroepidemiological studies were ...

Journal: :Journal of nematology 1992
P Timper H K Kaya

The impact of the nematode-parasitic fungus Hirsutella rhossiliensis on the effectiveness of Steinernema carpocapsae, S. glaseri, and Heterorhabditis bacteriophora against Galleria mellonella larvae was assessed in the laboratory. The presence of Hirsutella conidia on the third-stage (J3) cuticle of S. carpocapsae and H. bacteriophora interfered with infection of insect larvae. Conidia on the J...

Journal: :Parasite 2002
B R Krasnov I S Khokhlova L F Fielden N V Burdelova

Fleas Xenopsylla conformis mycerini and Xenopsylla ramesis replace each other on the same rodent host (Meriones crassus) in two habitats that differ in substrate texture (sand and loess-like sediments, respectively). We hypothesized that the substrate is an important factor determining flea distribution and studied survival of larvae, pupae and newly emerged adults as well as the rate of pre-im...

Journal: :The open parasitology journal 2010
Marcelo Ramalho-Ortigao Elvira M Saraiva Yara M Traub-Csekö

Sand fly and Leishmania are one of the best studied vector-parasite models. Much is known about the development of these parasites within the sand fly, and how transmission to a suitable vertebrate host takes place. Various molecules secreted by the vector assist the establishment of the infection in a vertebrate, and changes to the vector are promoted by the parasites in order to facilitate or...

2017
Nina S Liland Irene Biancarosa Pedro Araujo Daan Biemans Christian G Bruckner Rune Waagbø Bente E Torstensen Erik-Jan Lock

Black soldier fly (Hermetia illucens) larvae are a promising source of protein and lipid for animal feeds. The nutritional composition of the BSF larvae depend partly on the composition of the feeding medium. The BSF lipid profile in part mimics the feeding media lipid profile, and micronutrients, like minerals and vitamins, can readily accumulate in black soldier fly larvae. However, investiga...

Background and Objective: Leishmaniasis is one of the most important vector-borne zoonosis that transmits to human by sand fly species. The current study was carried out to identify sand fly species in Zirkooh, Khorasan-e-Jonobi Province. It was also aimed to determine Leishmania species in infected sand flies by RFLP-PCR method. Materials and methods:Sand fly specimens were collected by usi...

2012
Regis Gomes Fabiano Oliveira

Leishmaniasis is a vector-borne disease transmitted by bites of phlebotomine sand flies. During Leishmania transmission, sand fly saliva is co-inoculated with parasites into the skin of the mammalian host. Sand fly saliva consists of roughly thirty different salivary proteins, many with known roles linked to blood feeding facilitation. Apart from the anti-hemostatic capacity of saliva, several ...

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