Fowl Cholera in Chickens: Current Trends in Diagnosis and Phenotypic Drug Resistance in Gondar City, Ethiopia.

Ethiopia, with an estimated chicken population of 17 million, serves as a source of high-quality animal protein, helping to reduce malnutrition, improve nutritional status, and provide food and food products. However, Ethiopia has not fully leveraged the value of chicken production due to various bacterial diseases, with fowl cholera (FC) being the most common. Therefore, the objective of this review is to highlight the current trends in the diagnosis of FC in chickens and asses its phenotypic drug resistance patterns in Gondar City.

Development and application of a quadruplex real-time fluorescence quantitative PCR assay for four porcine digestive pathogens.

Introduction: , , , and are the primary pathogens responsible for gastrointestinal diseases in pigs, posing a significant threat to the health and productivity of pig production systems. Pathogen detection is a crucial tool for monitoring and managing these infections.

Methods: We designed primers and probes targeting the gene of , the 23S gene of , the gene of , and the gene of .

Development and application of a quadruplex TaqMan fluorescence quantitative PCR typing method for generalis, type 2, type 7 and type 9.

Introduction: (SS) is one of the most important pathogens causing major economic losses in the global pig farming industry and is a serious threat to public health safety. It has multiple serotypes, with poor cross-protection between serotypes, and effective typing methods are lacking.

Methods: In this study, a quadruplex TaqMan fluorescence quantitative PCR assay that can differentiate between types 2, 7 and 9 was developed using the gene, a generic gene for , and , and , genes encoding podocarp-associated genes for types 2, 7 and 9, respectively, as targets.

Biofilm formation in Streptococcus suis: in vitro impact of serovars and assessment of coinfections with other porcine respiratory disease complex bacterial pathogens.

Streptococcus suis is a worldwide pathogen that impacts the swine industry, causing severe clinical signs, including meningitis and arthritis, in postweaning piglets. A key virulence mechanism of S. suis is biofilm formation, which improves its persistence and resistance to external factors.

Synergistic fermentation of Cordyceps militaris and herbal substrates boosts grower pig antioxidant and immune function.

Background: Pathogenic infections can significantly impact the health of livestock. Traditionally, antibiotic growth promoters (AGPs) have been used in feed to enhance growth performance and disease control. However, concerns regarding antibiotic resistance have led to the exploration of traditional herbal medicine as a natural alternative, guided by the principle of medicine-food homology.

Comparison of the Minimum Inhibitory and Mutant Prevention Drug Concentrations for Pradofloxacin and 7 Other Antimicrobial Agents Tested Against Swine Isolates of and .

Pradofloxacin is a dual targeting, bactericidal fluoroquinolone recently approved for treating bacteria causing swine respiratory disease. Currently, an abundance of in vitro data does not exist for pradofloxacin. We determined the minimum inhibitory concentration (MIC) and mutant prevention concentrations (MPC) of pradofloxacin compared to ceftiofur, enrofloxacin, florfenicol, marbofloxacin, tildipirosin, tilmicosin and tulathromycin against swine isolates of and .

Identification of Species in Cattle Associated with Bovine Respiratory Disease Mortality.

Approximately 30 distinct species have been isolated from cattle, but only a few are pathogenic and can cause serious respiratory diseases. Consequently, this study aimed to identify spp. infections in cattle with bovine respiratory disease (BRD), considering factors such as animal demographics, concurrent infections with other pathogens, post-mortem clinical findings and histological examinations, and seasonality.

Effects of intranasal administration with a symbiotic strain of Bacillus velezensis NSV2 on nasal cavity mucosal barrier in lambs.

The nasal mucosa is composed of multiple layers of barrier structures and is the first line of defense against infection by respiratory pathogenic microorganisms. A large number of commensal microorganisms are present in the nasal mucosa that mediate and regulate nasal mucosal barrier function. The objective of this research was to investigate the effects of commensal microorganisms on the nasal mucosal barrier.

Enhanced ePAD-DNA biosensor incorporating ZnO-NRs: Rapid and reliable electrochemical detection of field-isolated Pasteurella multocida.

An electrochemical sensor has received much attention due to its importance for early infection identification, hinting at its critical relevance in diagnostic applications. For the detection of field-isolated strains of Pasteurella multocida, this paper reports the development and fabrication of a DNA-based electrochemical biosensor by integrating zinc oxide (ZnO) nanorods (NRs) into an electrochemical paper-based analytical device (ePAD). One significant improvement over the state-of-the-art features of the sensor is the using paper, an economically viable substrate that can be manufactured in large numbers.

Avian Pasteurella multocida induces chicken macrophage apoptosis by inhibiting the Zyxin-FAK-AKT-FoxO1/NF-κB axis.

Pasteurella multocida (P. multocida) can cause infection in various animals, especially livestock and poultry, which can lead to substantial losses to the breeding industry. However, the pathogenesis of avian P.

Pasteurella multocida from deep nasal swabs and tracheobronchial lavage in bovine calves from Sweden.

Background: Bovine respiratory disease (BRD) is common in intensively raised cattle and is often treated with antibiotics. For practitioners, knowledge of the bacteria involved in an outbreak and their antibiotic susceptibility is warranted. To this end, samples from the upper or lower respiratory tract of calves can be submitted for bacteriological culture and susceptibility testing of relevant isolates.

Relationship between capsule production and biofilm formation by , and establishment of a poly-species biofilm with other .

is one of the bacterial agents responsible for bovine respiratory disease (BRD). The capability of to form a biofilm may contribute to the development of chronic BRD infection by making the bacteria more resistant to host innate immunity and antibiotics. To improve therapy and prevent BRD, a greater understanding of the association between surface components and biofilm formation is needed.

A surface lipoprotein on binds complement factor I to promote immune evasion.

is the leading cause of wound infections in humans following animals' bites or scratches. This bacterium is also commonly found in the respiratory tract of many mammals and can cause serious diseases resulting in the brutal rapid death of infected animals, especially cattle. To prevent these infections in cattle, a subunit-based vaccine utilizing the surface lipoprotein PmSLP was developed and showed remarkable protection with a single dose administration.

The first report of concurrent infection of hemorrhagic septicemia with foot and mouth disease in cattle in Bangladesh.

This study aimed to investigate the concurrent infection of Pasteurella multocida (P. multocida) type B:2, which causes Hemorrhagic Septicemia (HS), with cases of Foot and Mouth Disease (FMD) outbreaks in cattle in Bangladesh between March and December 2023. Samples were collected from 11 distinct outbreak areas, totaling 102 samples.

Anti-quorum sensing and anti-biofilm activities of Pasteurella multocida strains.

A total of 52 Pasteurella multocida strains of capsular serogroups (A, B and D) were screened for anti-quorum sensing activity against Chromobacterium violaceum. Of which, 12 strains of serogroups A were found to possess anti-quorum sensing activity. Inhibition activity was highest for strain NIVEDIPm9 and lowest for strain NIVEDIPm30 based on zone of pigment inhibition.

Peritonitis-related bacterial infections: a large-scale case-series retrospective study in 160 domestic animals (2009-2022).

Bacterial peritonitis infections comprise a life-threatening clinical condition in domestic animals that commonly lead to sepsis and high mortality. A set of bacterial pathogens have been identified in septic peritonitis in livestock and companion animals. Nonetheless, most descriptions are restricted to case reports or limited to only one domestic species, and a restrict number of comprehensive studies involving this infection has focused on a great number of domestic animals.

Protection of Rabbits Against Colonization and Morbidity Associated With Toxigenic by Immunization With Inactivated Heat-labile Toxin.

Background/aim: Pasteurella multocida is a significant cause of morbidity and mortality in rabbits, as well as other species. Some isolates elaborate a heat-labile toxin (PMT) that has been shown to be an important virulence factor. Though previous studies have demonstrated protective immunity can be conferred via immunization of rabbits with heat-inactivated PMT (IPMT), we investigated the ability of immunization to impact colonization of P.

PMCNA_RS00975 activates NF-κB and ERK1/2 through TLR2 and contributes to the virulence of .

Introduction: is a pathogenic bacterium known to cause hemorrhagic septicemia and pneumonia in poultry. Reports have indicated that certain proteins, either directly involved in or regulating iron metabolism, are important virulence factors of . Therefore, understanding virulent factors and analyzing the role of pro-inflammatory cytokines can help us elucidate the underlying pathogenesis.