نتایج جستجو برای: host parasite interactions

تعداد نتایج: 602299  

Journal: :Emerging Infectious Diseases 1997
D. R. Roberts L. L. Laughlin P. Hsheih L. J. Legters

Malaria is reemerging in endemic-disease countries of South America. We examined the rate of real growth in annual parasite indexes (API) by adjusting APIs for all years to the annual blood examination rate of 1965 for each country. The standardized APIs calculated for Brazil, Peru, Guyana, and for 18 other malaria-endemic countries of the Americas presented a consistent pattern of low rates up...

2013
Hye-Youn Cho Mi-Kyoung Kwak Jingbo Pi

1 Laboratory of Respiratory Biology, National Institute of Environmental Health Sciences, National Institutes of Health, 111 TW Alexander Drive, Building 101, MD D-201, Research Triangle Park, NC 27709, USA 2The Catholic University of Korea, College of Pharmacy, 43 Jibong-ro, Wonmi-gu, Bucheon, Gyeonggi-Do 420-743, Republic of Korea 3 Institute for Chemical Safety Sciences, The Hamner Institute...

Journal: :Mathematical biosciences 2016
N Bairagi D Adak

Parasites play a significant role in trophic interactions and can regulate both predator and prey populations. Mathematical models might be of great use in predicting different system dynamics because models have the potential to predict the system response due to different changes in system parameters. In this paper, we study a predator-prey-parasite (PPP) system where prey population is infec...

2012
Gilles Cottrell Bienvenue Kouwaye Charlotte Pierrat Agnès le Port Aziz Bouraïma Noël Fonton Mahouton Norbert Hounkonnou Achille Massougbodji Vincent Corbel André Garcia

Malaria remains endemic in tropical areas, especially in Africa. For the evaluation of new tools and to further our understanding of host-parasite interactions, knowing the environmental risk of transmission--even at a very local scale--is essential. The aim of this study was to assess how malaria transmission is influenced and can be predicted by local climatic and environmental factors.As the...

Journal: :PLoS Biology 2005
Renaud Lacroix Wolfgang R Mukabana Louis Clement Gouagna Jacob C Koella

Do malaria parasites enhance the attractiveness of humans to the parasite's vector? As such manipulation would have important implications for the epidemiology of the disease, the question has been debated for many years. To investigate the issue in a semi-natural situation, we assayed the attractiveness of 12 groups of three western Kenyan children to the main African malaria vector, the mosqu...

Journal: :Journal of vector borne diseases 2007
Sunando Roy Jayashree Dharmadhikari Aditya Dharmadhikari Deepak Mathur Shobhona Sharma

BACKGROUND & OBJECTIVES The effect of P. falciparum on erythrocytes has been studied for a long time at the population level but actual studies at the single cell level remain largely unexplored. The aim of this study was to address the host-parasite relationship at the single cell level under two different kinds of forces, an optical force and a fluid force. The questions addressed were about ...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2009
Paul Schmid-Hempel

The discussion of host-parasite interactions, and of parasite virulence more specifically, has so far, with a few exceptions, not focused much attention on the accumulating evidence that immune evasion by parasites is not only almost universal but also often linked to pathogenesis, i.e. the appearance of virulence. Now, the immune evasion hypothesis offers a deeper insight into the evolution of...

Journal: :Journal of evolutionary biology 2007
A-L Laine

Understanding processes maintaining variation in pathogen life-history stages affecting infectivity and reproduction is a key challenge in evolutionary ecology. Models of host-parasite coevolution are based on the assumption that genetic variation for host-parasite interactions is a significant cause of variation in infection, and that variation in environmental conditions does not overwhelm th...

2016
Jung-Ting Chien Suman B. Pakala Juliana A. Geraldo Stacey A. Lapp Jay C. Humphrey John W. Barnwell Jessica C. Kissinger Mary R. Galinski

Plasmodium coatneyi is a protozoan parasite species that causes simian malaria and is an excellent model for studying disease caused by the human malaria parasite, P. falciparum Here we report the complete (nontelomeric) genome sequence of P. coatneyi Hackeri generated by the application of only Pacific Biosciences RS II (PacBio RS II) single-molecule real-time (SMRT) high-resolution sequence t...

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