Paratuberculosis (PTCB) or Johne's disease (JD) caused by a slow growing acid fast bacillus Mycobacterium avium subspecies paratuberculosis (MAP), is an infectious of many species including humans. The responsible for important economic losses to livestock industry worldwide. Although the widespread, it had not been studied in Algerian sheep. In this study we inspected presence infection sheep ...

Mycobacterium avium subspecies paratuberculosis, the etiologic agent of Johne's disease or paratuberculosis, was identified by culture and/or polymerase chain reaction (PCR) in 50% and 30% of water samples for animal and human consumption, respectively, from ten dairy goat farms in Brazil. IS1311 restriction fragment length polymorphism analysis identified the isolates as cattle type C.

Enzyme-linked immunosorbent assays (ELISAs) for the diagnosis of Johne's disease (JD), caused by Mycobacterium avium subsp. paratuberculosis, were developed using whole bacilli treated with formaldehyde (called WELISA) or surface antigens obtained by treatment of M. avium subsp. paratuberculosis bacilli with formaldehyde and then brief sonication (called SELISA). ELISA plates were coated with e...

Methods to improve the ELISA test to detect Mycobacterium avium subsp. paratuberculosis have been explored over several years. Previously, selected recombinant proteins of M. avium subspecies paratuberculosis were found to be immunogenic in cattle with Johne's disease. In the present study, antibody responses of infected and healthy sheep were evaluated using 18 purified recombinant proteins in...

With the objective of identifying presence Paratuberculosis (PTB), an infectious disease caused by Mycobacterium avium ssp paratuberculosis (MAP), in sheep, through pathological studies, bacterial culture and IS900 PCR, as well estimating seroprevalence to MAP. The present cross-sectional study, was conducted 16 different flocks, with serum 2415 adult sheeps, analyzed Enzyme-Linked ImmunoSorben...

Type 1 diabetes mellitus (T1DM) is an autoimmune disease. The etiology of T1DM is incompletely understood but environmental agent(s) are thought to trigger T1DM in the genetically at-risk. Humans are widely exposed to Mycobacterium avium subspecies paratuberculosis (MAP), a proven multi-host chronic enteric pathogen that is mostly studied in ruminant animals and causes the inflammatory disease ...

Mycobacterium avium subspecies paratuberculosis was identified by nested polymerase chain reaction in the blood and semen of a 4year-old Holstein breeding bull that exhibited clinical signs of paratuberculosis and was serologically positive for the organism by agar gel immunodiffusion and ELISA, although three fecal cultures were negative for the organism. The animal subsequently died, but a ne...

Bacterial culture is the 'gold standard' for detecting Mycobacterium avium subspecies paratuberculosis (MAP) infection, but is time consuming, laborious, and recovery of organism varies with species of animal tested. PCR has been used for detection of MAP DNA in feces and tissues. We used PCR to detect MAP DNA isolated from tissues from 25 free-ranging North American bison (Bison bison), each w...

Reassessing this persistent theory in light of advances in molecular microbial detection and genetic pathogenesis of disease.