Seasonal Changes in Density and Tissue Distribution of Onchocerca cervicalis Microfilariae in Ponies and Related Changes in Culicoides variipennis Populations in Louisiana

1987 ◽  
Vol 73 (2) ◽  
pp. 320 ◽  
Author(s):  
L. D. Foil ◽  
T. R. Klei ◽  
R. I. Miller ◽  
G. E. Church ◽  
C. S. Foil ◽  
...  



Author(s):  
R. A. Nunamaker ◽  
C. E. Nunamaker ◽  
B. C. Wick

Culicoides variipennis (Coquillett) is probably the most economically important species of biting midge in the U.S. due to its involvement in the transmission of bluetongue (BT) disease of sheep, cattle and ruminant wildlife, and epizootic hemorrhagic disease (EHD) of deer. Proposals have been made to recognize the eastern and western populations of this insect vector as distinct species. Others recommend use of the term “variipennis complex” until such time that the necessary biosystematic studies have been made to determine the genetic nature and/or minute morphological differences within the population structure over the entire geographic range of the species. Increasingly, students of ootaxonomy are relying on scanning electron microscopy (SEM) to assess chorionic features. This study was undertaken to provide comparative chorionic data for the C. variipennis complex.Culicoides variipennis eggs were collected from a laboratory colony maintained in Laramie, Wyoming.



ASHA Leader ◽  
2013 ◽  
Vol 18 (7) ◽  

Summer kicking into high gear conjures images of swimming pools and barbeques. But before you book your beach house for the weekend, think about what the changing seasons can mean for you professionally.



2002 ◽  
Vol 76 (2) ◽  
pp. 237-245 ◽  
Author(s):  
JONAS ORNBORG ◽  
STAFFAN ANDERSSON ◽  
SIMON C. GRIFFITH ◽  
BEN C. SHELDON


1990 ◽  
Vol 79 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Fumio Yoshie ◽  
Hirohito Arai ◽  
Hideaki Nakashima ◽  
Shoichi Kawano






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