نتایج جستجو برای: arthropod vectors

تعداد نتایج: 73051  

2006

Geographic Distribution Wesselsbron virus has been isolated from vertebrates or arthropod vectors in several countries in southern Africa including Cameroon, the Central African Republic, Nigeria, Senegal, South Africa, Uganda, and Zimbabwe. There is serological evidence of its presence in other sub-Saharan countries in Africa including the island of Madagascar. In addition, this virus has been...

2013

Geographic Distribution Wesselsbron virus has been isolated from vertebrates or arthropod vectors in several countries in southern Africa including Cameroon, the Central African Republic, Nigeria, Senegal, South Africa, Uganda, and Zimbabwe. There is serological evidence of its presence in other sub-Saharan countries in Africa including the island of Madagascar. In addition, this virus has been...

Journal: :acta medica iranica 0
narges sharifinia department of medical entomology, school of health, ilam university of medical sciences, ilam, iran. javad rafinejad department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. ahmad ali hanafi-bojd department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. sadegh chinikar arboviruses and viral hemorrhagic fevers laboratory (national reference laboratory), pasteur institute of iran, tehran, iran. norayer piazak arboviruses and viral hemorrhagic fevers laboratory (national reference laboratory), pasteur institute of iran, tehran, iran. mojgan baniardalan department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran.

ticks are vectors of some important arthropod-borne diseases in both fields of veterinary and medicine, such as lyme, tularemia, rocky mountain spotted fever, and some types of encephalitis as well as crimean congo hemorrhagic fever (cchf). iran is known as one of the main foci of cchf in west of asia. this study was conducted in darrehshahr county because of the development of animal husbandry...

Journal: :Proceedings. Biological sciences 2009
Louis Lambrechts Thomas W Scott

The traditional assumption that vector-borne pathogens should evolve towards a benign relationship with their arthropod vectors has been challenged on theoretical grounds and empirical evidence. However, in the case of arboviruses (arthropod-borne viruses), although a number of investigators have reported experimental evidence for virus-induced vector mortality, others have failed to detect any...

2014
Esther Schnettler Hana Tykalová Mick Watson Mayuri Sharma Mark G. Sterken Darren J. Obbard Samuel H. Lewis Melanie McFarlane Lesley Bell-Sakyi Gerald Barry Sabine Weisheit Sonja M. Best Richard J. Kuhn Gorben P. Pijlman Margo E. Chase-Topping Ernest A. Gould Libor Grubhoffer John K. Fazakerley Alain Kohl

Arboviruses are transmitted by distantly related arthropod vectors such as mosquitoes (class Insecta) and ticks (class Arachnida). RNA interference (RNAi) is the major antiviral mechanism in arthropods against arboviruses. Unlike in mosquitoes, tick antiviral RNAi is not understood, although this information is important to compare arbovirus/host interactions in different classes of arbovirus v...

Journal: :Epidemiology and infection 2015
G Hestvik E Warns-Petit L A Smith N J Fox H Uhlhorn M Artois D Hannant M R Hutchings R Mattsson L Yon D Gavier-Widen

The bacterium Francisella tularensis causes the vector-borne zoonotic disease tularemia, and may infect a wide range of hosts including invertebrates, mammals and birds. Transmission to humans occurs through contact with infected animals or contaminated environments, or through arthropod vectors. Tularemia has a broad geographical distribution, and there is evidence which suggests local emergen...

2012
Tahar Kernif Cristina Socolovschi Konstans Wells Maklarin B. Lakim Saythong Inthalad Günther Slesak Najma Boudebouch Jean-Claude Beaucournu Paul N. Newton Didier Raoult Philippe Parola

Rickettsioses and bartonelloses are arthropod-borne diseases of mammals with widespread geographical distributions. Yet their occurrence in specific regions, their association with different vectors and hosts and the infection rate of arthropod-vectors with these agents remain poorly studied in South-east Asia. We conducted entomological field surveys in the Lao PDR (Laos) and Borneo, Malaysia ...

2014
Natapong Jupatanakul Shuzhen Sim George Dimopoulos

Diseases caused by arthropod-borne viruses (arboviruses), such as Dengue, West Nile, and Chikungunya, constitute a major global health burden and are increasing in incidence and geographic range. The natural microbiota of insect vectors influences various aspects of host biology, such as nutrition, reproduction, metabolism, and immunity, and recent studies have highlighted the ability of insect...

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