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Mycobacteria cause a wide variety of disease in human and animals. Species that infect ruminants include and ssp. (MAP). MAP is the causative agent of Johne's disease in ruminants, which is a chronic granulomatous enteric infection that leads to severe economic losses worldwide. Characteristic of MAP infection is the long, latent phase in which intermittent shedding can take place, while diagnostic tests are unable to reliably detect an infection in this stage. This leads to unnoticed dissemination within herds and the presence of many undetected, silent carriers, which makes the eradication of Johne's disease difficult. To improve the control of MAP infection, research is aimed at improving early diagnosis. Transcriptomic approaches can be applied to characterize host-pathogen interactions during infection, and to develop novel biomarkers using transcriptional profiles. Studies have focused on the identification of specific RNAs that are expressed in different infection stages, which will assist in the development and clinical implementation of early diagnostic tests.
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http://dx.doi.org/10.3390/vetsci6030059 | DOI Listing |
Tuberculosis (Edinb)
August 2025
School of Agriculture & Environment, Massey University, Palmerston North 4442, New Zealand; Shreiber School of Veterinary Medicine, Rowan University, 1000 Gilbreth Parkway, Harrison Township, NJ, 08062, United States. Electronic address:
Dairy cattle are affected by Johne's disease. It is caused by Mycobacterium avium subspecies paratuberculosis (MAP). Suboptimal diagnostic tests add more to the productivity loss resulting from this disease.
View Article and Find Full Text PDFVet Ital
September 2025
Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura, India.
Extracellular vesicles (EVs) are cell-derived and play a notable role in the development of chronic diseases and can be used as biomarkers as they transport microRNAs (miRNA). Existing research has found that most miRNA functions are carried out via intercellular transmission of EVs, which can protect and sort miRNAs. Early detection of disease is crucial for controlling the spread of the disease and improving livestock prognosis.
View Article and Find Full Text PDFData Brief
October 2025
Department of Computer Engineering, Jordan University of Science and Technology, P.O. Box 3030 Irbid 22110 Jordan.
Johne's disease (paratuberculosis), caused by subspecies , is a chronic intestinal infection that affects ruminants and poses significant challenges for livestock health and management. Accurate and early diagnosis is of paramount importance for effective disease control, yet traditional histopathological assessment requires expert interpretation and remains subject to interobserver variability. In this paper, we present a curated dataset of histopathological slide images collected from tissue samples confirmed to be positive or negative for Johne's disease.
View Article and Find Full Text PDFDiagn Microbiol Infect Dis
December 2025
Department of Infectious Diseases and Tropical Medicine, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
Disseminated Mycobacterium avium complex (DMAC) infection is a major AIDS-defining condition with diagnostic challenges due to nonspecific symptoms. This study, for the first time in Iran, aimed to discriminate MAC organisms in 100 HIV-positive patients directly from clinical specimens and assess their clinical significance, epidemiological characteristics, and associated risk factors through a detailed review of medical and demographic records. Clinical specimens (blood, sputum, and stool) were collected, and routine clinical evaluations were performed.
View Article and Find Full Text PDFAnimals (Basel)
August 2025
Environment Authority, Muscat 100, Oman.
The Sultanate of Oman boasts remarkable biodiversity, exemplified by such species as the Arabian leopard () and the Arabian oryx (), national symbols that highlight the extensive conservation efforts required to protect the country's natural heritage. During decades, Omani authorities have taken significant measures to safeguard wildlife and preserve the natural environment. A sanctuary dedicated to the reintroduction of the Arabian Oryx, after extinction in nature in 1972, was established in 1980 in the Al Wusta Governorate under the patronage of the Royal Diwan and currently administrated by the recently established Environment Authority.
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