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Fatal interactions: pneumonia in bighorn lambs following experimental exposure to carriers of .
J Clin Microbiol
February 2025
Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, USA.
We hypothesized that bighorn sheep ewes with chronic nasal carriage are the source of infection that results in fatal lamb pneumonia. We tested this hypothesis in captive bighorn ewes at two study facilities over a 5-year period, by identifying carrier ewes and then comparing lamb fates in groups that did (exposed pens) or did not (non-exposed pens) include one or more carrier ewes. Most (23 of 30) lambs born in exposed pens, but none of 11 lambs born in non-exposed pens, contracted fatal pneumonia.
View Article and Find Full Text PDFMulti-platform diagnostic strategy and biosecurity as basis of contagious agalactia control programs in endemic areas.
Ir Vet J
January 2025
Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo s/n., Murcia, 30100, Spain.
Background: Control strategies against contagious agalactia (CA), considered one of the most important diseases affecting small ruminants in countries surrounding the Mediterranean, are mainly based on traditional strategies considered suboptimal such as the use of inactivated vaccines and antibiotics. This manuscript analysed the efficacy of an alternative non-mandatory official control programme based on a multi-platform diagnostic panel and biosecurity developed and started in 185 herds placed in a contagious agalactia endemic area of Spain, using the data of 74,080 samples collected and analysed during a 4 years-period (2018-2021).
Results: Globally, the combined analyses of bulk tank milk (BTM), ear or nasal swabs (in goats or sheep, respectively) and the serology to detect Mycoplasma agalactiae (Ma), allowed the detection of 40.
Different Types of Co-Infection by Contagious Ecthyma Virus, Enteropathogenic , , Ecto- and Endo-Parasites in Four Young Alpine Ibex ().
Animals (Basel)
December 2024
Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Regione Amerique 7G, 11020 Quart, AO, Italy.
The research aimed to investigate the perinatal pathology of Alpine ibex () through the study of four young subjects (at the age of 3 to 4 months) found dead in Valle d'Aosta, a region of northwestern Italy. The carcasses were submitted to necropsy followed by an examination of ecto- and endoparasites (ECP and ENP); samples from the gross lesions (in summary, cutaneous papilloma and crusts, ocular discharge, lobular haemorrhagic areas in the lungs, catarrhal-haemorrhagic enterocolitis) were analysed by bacteriological, histopathological, and biomolecular methods to define the etiological agent. The subjects, with various co-infection patterns, were affected by contagious ecthyma virus (ORFV) (agent of a highly diffusive pustular dermatitis transmissible to small ruminants and humans), Enteropathogenic (EPEC) (major etiological agent of infantile diarrhoea especially in developing countries), (MC) (cause of an ocular infection common to goats and sheep), various ECP (ticks and keds) and ENP (lung and intestinal nematodes, and coccidia).
View Article and Find Full Text PDFInvestigation of the presence of Chlamydia spp., Mycoplasma spp. and Moraxella ovis in infectious keratoconjunctivitis cases in sheep and goats in Siirt province and evaluation of clinical findings.
Pol J Vet Sci
June 2024
Siirt University, Faculty of Veterinary Medicine, Department of Surgery, Siirt/Türkiye.
Infectious keratoconjunctivitis is an infectious disease that negatively affects animal welfare causing systemic or local clinical signs in small ruminants and causes significant economic losses in herds. It is important to determine the etiologic agent causing the infection in the development of the protection and control strategies against the disease. The aim of this study was to determine the presence of infectious keratoconjunctivitis cases in small ruminants raised in Siirt province in Türkiye.
View Article and Find Full Text PDFMycoplasma ovipneumoniae identified as the main aetiological agent of respiratory disease in goats from a case-control study in Savannakhet province of Lao PDR.
Vet Microbiol
February 2025
School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia.
Clinical signs of respiratory disease are common in Lao goats. To identify the causative agents involved in this clinical syndrome, a matched case-control study was conducted across 70 smallholder goat holdings in Savannakhet province. Fifty paired nasal swab samples were collected from goats with respiratory signs (cases) and unaffected (control) goats from 27 goat holdings.
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