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Protective efficacy of classical vaccines and vaccination protocols against an exotic Newcastle disease virus genotype VII.2 in Belgian layer and broiler chickens.
Poult Sci
January 2025
Avian Virology and Immunology, Sciensano, Rue Groeselenberg 99, Uccle, Brussels 1180, Belgium.
Vaccination against Newcastle disease (ND) has been routinely implemented in the Belgian professional poultry sector since 1993, using genotype I and II vaccines. Despite this, an outbreak of genotype VII.2 avian paramyx-ovirus 1 (APMV-1) occurred in 2018, with 20 reported cases over the course of 3 months.
View Article and Find Full Text PDFRegional variation in the landscape ecology of West Nile virus sentinel chicken seroconversion in Florida.
PLoS One
October 2024
Florida Medical Entomology Laboratory, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, Florida, United States of America.
How landscape composition and configuration impact the distribution of multi-vector and multi-host mosquito vector-borne disease systems, such as West Nile virus (WNV), remains challenging because of complex habitat and resource requirements by hosts and vectors that affect transmission opportunities. We examined correlations between landscape composition and configuration and 2018 WNV sentinel chicken seroconversion in Florida, USA across the state and within five National Oceanic Atmospheric Administration (NOAA) bioclimatic regions to understand strength and variation of landscape effects during an elevated transmission year. Although few landscape studies have examined WNV in Florida, we expected higher percentages of residential or medium-developed landscapes and more fragmented landscapes would be positively correlated with WNV seroconversion owing to the main mosquito vector habitats and avian host distributions.
View Article and Find Full Text PDFFirst Evidence of Antibodies in Sheep () from Southern Germany.
Animals (Basel)
June 2024
Animal Pathology Department, Veterinary Faculty, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain.
In Europe, is the most prevalent species, and this protozoan is transmitted by phlebotomine sandflies. A recent publication has shown that sheep harbor antibodies. This raises questions about the epidemiological role of small ruminants.
View Article and Find Full Text PDFWhat's the rumpus? Resident temperate forest birds approach an unfamiliar neotropical alarm call across three continents.
Biol Lett
October 2023
Department of Evolution, Ecology & Behavior, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Alarm signals have evolved to communicate pertinent threats to conspecifics, but heterospecifics may also use alarm calls to obtain social information. In birds, mixed-species flocks are often structured around focal sentinel species, which produce reliable alarm calls that inform eavesdropping heterospecifics about predation risk. Prior research has shown that Neotropical species innately recognize the alarm calls of a Nearctic sentinel species, but it remains unclear how generalizable or consistent such innate signal recognition of alarm-calling species is.
View Article and Find Full Text PDFThe use of cathepsin L1 (FhCL1) serological ELISA in sentinel screening for liver fluke on sheep farms.
Vet Parasitol Reg Stud Reports
October 2023
Molecular Parasitology Laboratory, Centre for One Health and Ryan Institute, National University of Ireland Galway, Galway, Ireland. Electronic address:
Fasciola hepatica is a parasitic helminth (worm) that poses a significant economic threat to the ruminant livestock industry worldwide. The disease, fasciolosis, can result in a range of clinical signs including anaemia, weight loss and death, with the most severe symptoms attributed to early acute infection when the parasite is migrating through the liver. Early diagnosis and intervention are essential for the control and management of the disease to prevent productivity losses.
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