A dipstick immunochromatographic assay used for West Nile virus (WNV) detection in mosquitoes was investigated for application to testing of fecal, saliva, and tissue samples from dead American Crows (). Results suggest that VecTest may be an efficient method for WNV detection in field-collected, dead American Crows, although confirmation of results and further investigation are warranted.
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http://dx.doi.org/10.3201/eid0910.030306 | DOI Listing |
J Forensic Sci
November 2024
Jasper Field Unit, Parks Canada, Jasper, Alberta, Canada.
Vertebrate scavengers represent important taphonomic agents that can act on a body, particularly when in an outdoor environment. Understanding the effects of these agents will direct how and where to search for human remains and influence the likelihood of discovery in a particular region. The current study aimed to identify the taphonomic impact of scavenger guilds in the peri-urban and rural regions of southeastern British Columbia.
View Article and Find Full Text PDFAnn Plast Surg
April 2024
From the Division of Plastic and Reconstructive Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
Background: The lateral orbital crow's feet area is one for which rejuvenation is most frequently requested by patients. Moreover, lateral canthal wrinkles are a common source of dissatisfaction after rhytidoplasty. Botulinum toxin injection has emerged as a most popular, easy, and effective solution; nevertheless, repeated injections are required periodically for long-term effect.
View Article and Find Full Text PDFNat Commun
October 2023
Western Washington University, Biology Department, Bellingham, WA, USA.
Tools enable animals to exploit and command new resources. However, the neural circuits underpinning tool use and how neural activity varies with an animal's tool proficiency, are only known for humans and some other primates. We use 18F-fluorodeoxyglucose positron emission tomography to image the brain activity of naïve vs trained American crows (Corvus brachyrhynchos) when presented with a task requiring the use of stone tools.
View Article and Find Full Text PDFViruses
August 2023
National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB R3E 3R2, Canada.
Pathogens
May 2023
Center for Vector-Borne Infectious Diseases, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA.
Arthropod-borne virus (arbovirus) populations exist as mutant swarms that are maintained between arthropods and vertebrates. West Nile virus (WNV) population dynamics are host-dependent. In American crows, purifying selection is weak and population diversity is high compared to American robins, which have 100- to 1000-fold lower viremia.
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