Effects of West Nile Virus Infection and Immune Function on Female - PowerPoint PPT Presentation

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Effects of West Nile Virus Infection and Immune Function on Female Yellow-headed Blackbird Reproduction Jennifer Newbrey Department of Biological Sciences North Dakota State University West Nile Virus Introduced into eastern North

Effects of West Nile Virus Infection and Immune Function on Female Yellow-headed Blackbird Reproduction Jennifer Newbrey Department of Biological Sciences North Dakota State University
West Nile Virus • Introduced into eastern North America in 1999 • Reached North Dakota in 2002 • Can cause fatal meningitis
Air Cell Outer Membrane Inner Membrane Amnion Yolk Chorioallantois
Objectives 1. Quantify prevalence of WNV in a population of yellow-headed blackbirds 2. Quantify variation in immune function of female blackbirds 3. Measure relation between female immune function and carotenoid allocation to eggs
= Study Area
Methods: Objective 2 • Cell-mediated (inflammation) & Humoral immunity (antibodies) B- Cell T- Cell
Cell-mediated Immunity WBC
Humoral Immunity RBC
Project Update 2003 Field Season Females Males Other Eggs 51 - - Feathers 20 9 - Blood 20 9 22
Acknowledgements • ND Water Resources • Graduate Committee Research Institute Chair: Dr. Wendy Reed • Dr. Penelope Gibbs • Dr. James Grier • ND Department of • Dr. Gary Nuechterlein Health • Field Assistance • ND EPSCoR • Becky Wentzel • Larry Newbrey • University of Colorado • Dr. Bradley Blitvich

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