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Volume 27, Number 7—July 2021
Dispatch

Autochthonous Thelazia callipaeda Infection in Dog, New York, USA, 2020

A.B. Schwartz1Comments to Author , Manigandan Lejeune1, Guilherme G. Verocai, Rebecca Young, and Paul H. SchwartzComments to Author 
Author affiliations: Marist College, Poughkeepsie, New York, USA (A.B. Schwartz); Animal College of Veterinary Medicine at Cornell University, Ithaca, New York, USA (M. Lejeune, R. Young); Texas A&M University College of Veterinary Medicine and Biological Sciences, College Station, Texas, USA (G.G. Verocai); Center for Veterinary Care Millbrook, PC, Millbrook, New York, USA (P.H. Schwartz)

Main Article

Figure 1

Integrated diagnostic approach for confirming Thelazia callipaeda nematodes: morphologic identification. Specimens were cleared in lactophenol before examination under an Olympus compound microscope (BX53) (https://www.olympus-lifescience.com). Images were taken with an Olympus DP73 camera, and morphometry was performed by using Olympus cellSens software. A) Cephalic end of a female worm. Black arrow indicates esophageal intestinal junction; red arrow indicates vulval opening. Original magnification ×100. B) Transverse striations (150–190/mm) in the cuticle of midbody region of a female worm. Original magnification ×200. C) Buccal cavity of a female worm, wider than deep. Note tightly spaced cuticular striations in the cephalic end. Original magnification ×200. D) Caudal end of female worm with protruding phasmids in the tip. The tail was not protruding unilaterally. Original magnification ×100.

Figure 1. Integrated diagnostic approach for confirming Thelazia callipaeda nematodes: morphologic identification. Specimens were cleared in lactophenol before examination under an Olympus compound microscope (BX53) (https://www.olympus-lifescience.com). Images were taken with an Olympus DP73 camera, and morphometry was performed by using Olympus cellSens software. A) Cephalic end of a female worm. Black arrow indicates esophageal intestinal junction; red arrow indicates vulval opening. Original magnification ×100. B) Transverse striations (150–190/mm) in the cuticle of midbody region of a female worm. Original magnification ×200. C) Buccal cavity of a female worm, wider than deep. Note tightly spaced cuticular striations in the cephalic end. Original magnification ×200. D) Caudal end of female worm with protruding phasmids in the tip. The tail was not protruding unilaterally. Original magnification ×100.

Main Article

1These authors contributed equally to this article.

Page created: May 11, 2021
Page updated: June 17, 2021
Page reviewed: June 17, 2021
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