scholarly journals Genomic diversity and molecular epidemiology of Pasteurella multocida

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249138
Author(s):  
Emily Smith ◽  
Elizabeth Miller ◽  
Jeannette Munoz Aguayo ◽  
Cristian Flores Figueroa ◽  
Jill Nezworski ◽  
...  
Keyword(s):  
Pasteurella Multocida ◽  
Companion Animals ◽  
Bacterial Pathogen ◽  
Genomic Diversity ◽  
Single Nucleotide Variants ◽  
Fowl Cholera ◽  
Genome Phylogeny ◽  
Bioinformatic Approaches ◽  
Multiple Strains ◽  
Encoding Genes

Pasteurella multocida is a bacterial pathogen with the ability to infect a multitude of hosts including humans, companion animals, livestock, and wildlife. This study used bioinformatic approaches to explore the genomic diversity of 656 P. multocida isolates and epidemiological associations between host factors and specific genotypes. Isolates included in this study originated from a variety of hosts, including poultry, cattle, swine, rabbits, rodents, and humans, from five different continents. Multi-locus sequence typing identified 69 different sequence types. In-silico methodology for determining capsular serogroup was developed, validated, and applied to all genome sequences, whereby capsular serogroups A, B, D, and F were found. Whole genome phylogeny was constructed from 237,670 core single nucleotide variants (SNVs) and demonstrated an overall lack of host or capsular serogroup specificity, with the exception of isolates from bovine sources. Specific SNVs within the srlB gene were identified in P. multocida subsp. septica genomes, representing specific mutations that may be useful for differentiating one of the three known subspecies. Significant associations were identified between capsular serogroup and virulence factors, including capsular serogroup A and OmpH1, OmpH3, PlpE, and PfhB1; capsular serogroup B and HgbA and PtfA; and capsular serogroup F and PtfA and PlpP. Various mobile genetic elements were identified including those similar to ICEPmu1, ICEhin1056, and IncQ1 plasmids, all of which harbored multiple antimicrobial resistance-encoding genes. Additional analyses were performed on a subset of 99 isolates obtained from turkeys during fowl cholera outbreaks from a single company which revealed that multiple strains of P. multocida were circulating during the outbreak, instead of a single, highly virulent clone. This study further demonstrates the extensive genomic diversity of P. multocida, provides epidemiological context to the various genotyping schemes that have traditionally been used for differentiating isolates, and introduces additional tools for P. multocida molecular typing.

Other bacterial diseasesPasteurellosis

2011 ◽  
Author(s):  
Daniel Rh. Thomas
Keyword(s):  
Pasteurella Multocida ◽  
Clinical Symptoms ◽  
Companion Animals ◽  
Fowl Cholera ◽  
Wide Range ◽  
Animal Contact ◽  
Shipping Fever ◽  
History Of ◽  
Animal Bites ◽  
Bovine Pneumonic Pasteurellosis

Pasteurellosis is a zoonosis that occurs worldwide, caused by bacteria of the genus Pasteurella, and other related organisms. Pasteurellosis reported in humans is most frequently caused by the species Pasteurella multocida. In humans, cutaneous infection is most common, but more severe outcomes have been reported, particularly in those with underlying chronic disease. Infection in animals is usually subclinical, but may give rise to a range of clinical symptoms, depending on the host species. Disease in animals usually occurs as a consequence of stress such as overcrowding, chilling, transportation, or as a result of a concurrent infection. In animals, pasteurellosis is known as: shipping fever or pneumonia, transport or transit fever, stockyard pneumonia, bovine pneumonic pasteurellosis, haemorrhagic septicaemia, or avian, bird or fowl cholera. The pasteurella bacterium is commonly present in the mouth and gastrointestinal tract of a wide range of mammals. Transmission to humans occurs after bites, scratches, or licks from infected animals, most frequently from dogs or cats, although infection has been associated with other animals including: cows, pigs, hamsters and rabbits. However, not all patients report a history of direct animal contact. Infection may be prevented through the avoidance of animal bites and the prompt hygienic care of wounds. Health professionals should be aware of the risk of pasterurellosis in immunocompromised patients exposed to companion animals.

scholarly journals Prevalence and antibiotic resistance of Pasteurella multocida isolated from chicken in Ado-Ekiti metropolis

2016 ◽  
Vol 4 (2) ◽  
pp. 40 ◽  
Author(s):  
Atere Victor ◽  
Bamikole Mathew ◽  
Oluyege Adekemi ◽  
Ajurojo Ayo ◽  
Alo Odunayo
Keyword(s):  
Pasteurella Multocida ◽  
Antimicrobial Agents ◽  
Biochemical Characterization ◽  
Bacterial Pathogen ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
In Vitro Susceptibility ◽  
Fowl Cholera ◽  
Peptone Water

Pasteurella multocida is a poultry bacterial pathogen causing fowl cholera in chicken. The prevalence and antibiotic susceptibility of P. multocida isolates from freshly dead chicken were determined. Ninety seven (97) freshly dead chicken from 23 different farms were analyzed for the presence of P. multocida. Swabs of the trachea and the liver of the necropsied chicken were activated on buffered peptone water and later cultured on blood agar and MacConkey agar. Pure culture of organisms were subjected to cultural and biochemical characterization. In vitro susceptibility of the pure isolates of P. multocida against 12 antimicrobial agents was determined using disk diffusion method. Twelve isolates of P. multocida were recovered from the chicken, with a prevalence of 12.4%. Nine of the isolates were recovered from the trachea and three from the liver. All the 12 isolates recovered from the birds were multi-resistant to the antibiotics used in this research. The antibiogram showed that all the isolates resisted ampicillin, amoxicillin/clavulinate, doxycycline and tylosine. Nitrofuratoin and gentamycin had the best antimicrobial activity with 25% and 50% resistance respectively. The resistance of other antibiotics are: Ofloxacin 75%, Ciprofloxacin 83.3%, Enrofloxacin 75%, Furasol 66.7%, Ceftazidime 91.7% and Cefuroxime 66.7%. This result showed that there is an emergence of multi- resistance in P. multocida, therefore it is important to carry out sensitivity test before administration of antibiotics in order to control fowl cholera. 

scholarly journals Novel multi-strain probiotics reduces Pasteurella multocida induced fowl cholera mortality in broilers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rine Christopher Reuben ◽  
Shovon Lal Sarkar ◽  
Habiba Ibnat ◽  
Md. Ali Ahasan Setu ◽  
Pravas Chandra Roy ◽  
...  
Keyword(s):  
Growth Performance ◽  
Feed Efficiency ◽  
Biochemical Parameters ◽  
Pasteurella Multocida ◽  
White Blood Cells ◽  
Clinical Signs ◽  
Basal Diet ◽  
Prostaglandin E ◽  
Fowl Cholera ◽  
Anti Inflammatory

AbstractPasteurella multocida causes fowl cholera, a highly contagious poultry disease of global concern, causing significant ecological and economic challenges to the poultry industry each year. This study evaluated the effects of novel multi-strain probiotics consisting of Lactobacillus plantarum, L. fermentum, Pediococcus acidilactici, Enterococcus faecium and Saccharomyces cerevisiae on growth performance, intestinal microbiota, haemato-biochemical parameters and anti-inflammatory properties on broilers experimentally challenged with P. multocida. A total of 120 birds were fed with a basal diet supplemented with probiotics (108 CFU/kg) and then orally challenged with 108 CFU/mL of P. multocida. Probiotics supplementation significantly (P < 0.05) improved growth performance and feed efficiency as well as reducing (P < 0.05) the population of intestinal P. multocida, enterobacteria, and mortality. Haemato-biochemical parameters including total cholesterol, white blood cells (WBC), proteins, glucose, packed cell volume (PCV) and lymphocytes improved (P < 0.05) among probiotic fed birds when compared with the controls. Transcriptional profiles of anti-inflammatory genes including hypoxia inducible factor 1 alpha (HIF1A), tumor necrosis factor- (TNF) stimulated gene-6 (TSG-6) and prostaglandin E receptor 2 (PTGER2) in the intestinal mucosa were upregulated (P < 0.05) in probiotics fed birds. The dietary inclusion of the novel multi-strain probiotics improves growth performance, feed efficiency and intestinal health while attenuating inflammatory reaction, clinical signs and mortality associated with P. multocida infection in broilers.

scholarly journals Ecophysiology of Freshwater Verrucomicrobia Inferred from Metagenome-Assembled Genomes

mSphere ◽  
2017 ◽  
Vol 2 (5) ◽  
Author(s):  
Shaomei He ◽  
Sarah L. R. Stevens ◽  
Leong-Keat Chan ◽  
Stefan Bertilsson ◽  
Tijana Glavina del Rio ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Potential Role ◽  
Carbon Sources ◽  
Genomic Analysis ◽  
Distribution Patterns ◽  
Eutrophic Lake ◽  
Genomic Diversity ◽  
Extracellular Electron Transfer ◽  
Different Origins ◽  
Encoding Genes

ABSTRACT Freshwater Verrucomicrobia spp. are cosmopolitan in lakes and rivers, and yet their roles and ecophysiology are not well understood, as cultured freshwater Verrucomicrobia spp. are restricted to one subdivision of this phylum. Here, we greatly expanded the known genomic diversity of this freshwater lineage by recovering 19 Verrucomicrobia draft genomes from 184 metagenomes collected from a eutrophic lake and a humic bog across multiple years. Most of these genomes represent the first freshwater representatives of several Verrucomicrobia subdivisions. Genomic analysis revealed Verrucomicrobia to be potential (poly)saccharide degraders and suggested their adaptation to carbon sources of different origins in the two contrasting ecosystems. We identified putative extracellular electron transfer genes and so-called “Planctomycete-specific” cytochrome c-encoding genes and identified their distinct distribution patterns between the lakes/layers. Overall, our analysis greatly advances the understanding of the function, ecophysiology, and distribution of freshwater Verrucomicrobia, while highlighting their potential role in freshwater carbon cycling. Microbes are critical in carbon and nutrient cycling in freshwater ecosystems. Members of the Verrucomicrobia are ubiquitous in such systems, and yet their roles and ecophysiology are not well understood. In this study, we recovered 19 Verrucomicrobia draft genomes by sequencing 184 time-series metagenomes from a eutrophic lake and a humic bog that differ in carbon source and nutrient availabilities. These genomes span four of the seven previously defined Verrucomicrobia subdivisions and greatly expand knowledge of the genomic diversity of freshwater Verrucomicrobia. Genome analysis revealed their potential role as (poly)saccharide degraders in freshwater, uncovered interesting genomic features for this lifestyle, and suggested their adaptation to nutrient availabilities in their environments. Verrucomicrobia populations differ significantly between the two lakes in glycoside hydrolase gene abundance and functional profiles, reflecting the autochthonous and terrestrially derived allochthonous carbon sources of the two ecosystems, respectively. Interestingly, a number of genomes recovered from the bog contained gene clusters that potentially encode a novel porin-multiheme cytochrome c complex and might be involved in extracellular electron transfer in the anoxic humus-rich environment. Notably, most epilimnion genomes have large numbers of so-called “Planctomycete-specific” cytochrome c-encoding genes, which exhibited distribution patterns nearly opposite to those seen with glycoside hydrolase genes, probably associated with the different levels of environmental oxygen availability and carbohydrate complexity between lakes/layers. Overall, the recovered genomes represent a major step toward understanding the role, ecophysiology, and distribution of Verrucomicrobia in freshwater. IMPORTANCE Freshwater Verrucomicrobia spp. are cosmopolitan in lakes and rivers, and yet their roles and ecophysiology are not well understood, as cultured freshwater Verrucomicrobia spp. are restricted to one subdivision of this phylum. Here, we greatly expanded the known genomic diversity of this freshwater lineage by recovering 19 Verrucomicrobia draft genomes from 184 metagenomes collected from a eutrophic lake and a humic bog across multiple years. Most of these genomes represent the first freshwater representatives of several Verrucomicrobia subdivisions. Genomic analysis revealed Verrucomicrobia to be potential (poly)saccharide degraders and suggested their adaptation to carbon sources of different origins in the two contrasting ecosystems. We identified putative extracellular electron transfer genes and so-called “Planctomycete-specific” cytochrome c-encoding genes and identified their distinct distribution patterns between the lakes/layers. Overall, our analysis greatly advances the understanding of the function, ecophysiology, and distribution of freshwater Verrucomicrobia, while highlighting their potential role in freshwater carbon cycling.

scholarly journals The Current Status of Veterinary Vaccinology: A Review

2019 ◽  
pp. 1-10
Author(s):  
Teferi Mandado
Keyword(s):  
Pasteurella Multocida ◽  
Scientific Paper ◽  
General Information ◽  
Current Status ◽  
College Of Agriculture ◽  
Fowl Cholera ◽  
Veterinary Vaccine ◽  
Other Information ◽  
The University ◽  
The 19Th Century

This paper was done starting from February 2017 to July 2017 in Jimma University College of Agriculture and School of Veterinary Medicine. The suffering of different animal species from multiple infectious agents in and around the university leads us to be conscious and enabled us to write this scientific paper which can be acts as the source of information for Veterinary vaccinology. Louis Pasteur in the 19th century demonstrated the ability to protect chickens against fowl cholera (Pasteurella multocida) and thus demonstrated the benefit of vaccination in animals and paved the way for the development of the array of veterinary vaccines which are in use today. Since Pasteur’s work, vaccination against infectious disease have been used successfully to protect animals from many serious diseases some of which were also significant risks to humans. Veterinary vaccine has a parallel way of development in research and development of vaccines in the human field vaccinology today also. Vaccine is a biological preparation that improves immunity to a particular disease. Vaccine contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe or its toxins. The general information concerning veterinary vaccination such as common vaccination, common methods of veterinary vaccination, principles of vaccination; standardization of veterinary vaccines, generation of vaccine, vaccine formulation, new approaches to veterinary vaccines and few other information were roughly reviewed from scientific journals, experiment results, proceedings, reference books and manuals. The objectives of this paper are to highlight the general current information of Veterinary Vaccinology and to give specific recommendations based on the facts obtained.

Molecular Detection of Carbapenem Resistant Gram Negative Bacterial Isolates from Dogs 

2021 ◽  
Author(s):  
Surya Sankar ◽  
Thresia . ◽  
Anu Bosewell ◽  
M. Mini
Keyword(s):  
Companion Animals ◽  
Multidrug Resistant ◽  
Beta Lactam ◽  
Gram Negative ◽  
Extended Spectrum Beta Lactamase ◽  
Beta Lactam Antibiotics ◽  
Carbapenem Resistant ◽  
Carbapenemase Gene ◽  
Line Of Therapy ◽  
Encoding Genes

Background: Carbapenems are beta-lactam antibiotics that are considered as the last line of therapy against multidrug resistant extended spectrum beta-lactamase. The resistance to carbapenems predominantly through carbapenemase is one of the most important emerging health problems worldwide in the therapy of clinical infections. The objective of the present study is to determine the presence of carbapenemase encoding genes among Gram- negative bacterial spp. associated with clinical infections in dogs. Methods: 30 Escherichia coli, 11 Klebsiella pneumoniae and three Pseudomonas aeruginosa isolated from urine, swabs from lesional skin and anterior vagina of dogs presented with different clinical ailments formed the samples for the study. Polymerase chain reaction was carried out to detect the presence of carbapenemase encoding genes viz., KPC, NDM, OXA, VIM and IMP among the isolates.Result: Out of the 44 Gram- negative isolates tested, 28 (76.3%) were positive for at least one tested carbapenemase gene. The highest frequency of carbapenemase recorded was for NDM followed by OXA-181, KPC, OXA-48 and VIM. Our study identified a high prevalence of carbapenemases among companion animals like dogs which could act as potential source of transmission of these resistance bacteria or their genomes to humans.

scholarly journals EPIDEMIOLOGICAL INVESTIGATION OF PASTEURELLA MULTOCIDA INFECTION IN POULTRY IN GAZIPUR DISTRICT OF BANGLADESH

2018 ◽  
Vol 15 (2) ◽  
pp. 91-95
Author(s):  
M. R. Hossain ◽  
M. M. Meher ◽  
M. Afrin
Keyword(s):  
Body Weight ◽  
Treatment Group ◽  
Present Status ◽  
Recovery Rate ◽  
Production Cost ◽  
Pasteurella Multocida ◽  
The Body ◽  
Post Mortem ◽  
Epidemiological Investigation ◽  
Fowl Cholera

The present study was undertaken to determine the present status of fowl cholera (FC) infection of poultry in Gazipur district during September 2016 to February 2017. A total of 282 either dead or sick birds (Layer and Sonali) were taken as sample in which the sick birds were subjected to record clinical data and consequently the dead birds were for post mortem examination. Hence, overall 12.41% prevalence was found for FC and about 87.59% was for mixed other diseases.  All the birds were grouped into six named as A1, A2 and up to A6 accordingly their age. The highest incidence (29.79 %) was found in A1 (8-20weeks) group and the lowest was 4.26% in A5 (51-60 weeks) group. Furthermore, six FC infected farms were categorized to treat with six specific antibiotics individually. Thereafter, the highest recovery rate (89.6% and 87.5%) was recorded in two farms using Enrofloxacin and Gentamicin particularly. The lowest recovery rate (60%) was in Erythromycin treatment group. However, the layer birds of six farms lost their body weight almost 11.84%, specifically the highest percentages (16.49%) was in treated with Ampicillin and lowest percentages (5.79%) found in a farm treated with Gentamicin. In brief, FC commonly appears just near to laying age and therapeutic management trivially decreases the body weight that ultimately shoots up the production cost.

scholarly journals Isolation and Identification of Pasteurella multocida from Chicken for the Preparation of Oil Adjuvanted Vaccine

2013 ◽  
Vol 2 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Samina Ievy ◽  
Mohammad Ferdousur Rahman Khan ◽  
Md Ariful Islam ◽  
Md Bahanur Rahman
Keyword(s):  
Immune Response ◽  
Pasteurella Multocida ◽  
Challenge Infection ◽  
Cholera Vaccine ◽  
Isolation And Identification ◽  
Passive Hemagglutination ◽  
Fowl Cholera ◽  
Adjuvanted Vaccine ◽  
Group A ◽  
The Mean

The research work was performed for the isolation and identification of Pasteurella multocida from field cases, preparation of oil adjuvanted vaccine from isolated strain and determination of its efficacy. Samples were collected from suspected dead birds of three poultry farms of Bangladesh (Code name: M and R). The P. multocida isolates were Gram negative, non-motile, non- spore forming rod occurring singly or pairs and occasionally as chains or filaments. Biochemically P. multocida ferment basic sugar and consistently produced acid except from maltose and lactose. After isolation formalin killed oil adjuvanted Fowl cholera vaccine was prepared in Laboratory of the Department of Microbiology and Hygiene, BAU and this experimental vaccine (3.2x108 CFU/ml) was administered in nine weeks old White Leg Horn chickens at the different dose rate through intramuscular (IM) route in each selected group A (1ml alum precipitated vaccine), B (0.5ml alum precipitated vaccine), C (1ml oil adjuvanted vaccine) and D (0.5ml oil adjuvanted vaccine). Pre-vaccinated sera were collected from all groups of birds. The mean of Passive Hemagglutination (PHA) titers of post-vaccination were 51±17.8, 76.8±17, 89.6±17, and 115±17.81 in group A, B, C and D respectively which consist of 5 birds in each. The vaccine produced better immune response when boostering with the similar dose and route at 15 days after primary vaccination. The mean PHA titers were higher at group D than other groups after boostering. Challenge infection was conducted on all the vaccinated and control group (n=5) of birds after 15 days of vaccination which protect 93.75% of birds and the PHA titers from different groups analyzed to determine the protective capacity of vaccinated chickens against challenge exposure. It was demonstrated that experimental oil adjuvanted fowl cholera vaccine with 0.5ml dose produce higher immune response against challenge infection and found to be safe. Microbes and Health, June 2013, 2(1): 1-4DOI: http://dx.doi.org/10.3329/mh.v2i1.17253

Co-occurrence of clinically relevant β-lactamases and MCR-1 encoding genes in Escherichia coli from companion animals in Argentina

2019 ◽  
Vol 230 ◽  
pp. 228-234 ◽  
Author(s):  
María Valeria Rumi ◽  
Javier Mas ◽  
Alan Elena ◽  
Louise Cerdeira ◽  
Maria E. Muñoz ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Companion Animals ◽  
Encoding Genes

scholarly journals Natural Selection in the Chicken Host Identifies 3-Deoxy-d-manno- Octulosonic Acid Kinase Residues Essential for Phosphorylation of Pasteurella multocida Lipopolysaccharide

2010 ◽  
Vol 78 (9) ◽  
pp. 3669-3677 ◽  
Author(s):  
Marina Harper ◽  
Andrew D. Cox ◽  
Frank St. Michael ◽  
Mark Ford ◽  
Ian W. Wilkie ◽  
...  
Keyword(s):  
Defense Mechanisms ◽  
Pasteurella Multocida ◽  
Inner Core ◽  
Single Amino Acid ◽  
Sequencing Analysis ◽  
Wild Type ◽  
Fowl Cholera ◽  
Mutant Strains ◽  
High Doses

ABSTRACT Pasteurella multocida is the causative agent of a number of diseases in animals, including fowl cholera. P. multocida strains simultaneously express two lipopolysaccharide (LPS) glycoforms (glycoforms A and B) that differ only in their inner core structure. Glycoform A contains a single 3-deoxy-d-manno-octulosonic acid (Kdo) residue that is phosphorylated by the Kdo kinase, KdkA, whereas glycoform B contains two unphosphorylated Kdo residues. We have previously shown that P. multocida mutants lacking the heptosyltransferase, HptA, produce full-length glycoform B LPS and a large amount of truncated glycoform A LPS, as they cannot add heptose to the glycoform A inner core. These hptA mutants were attenuated in chickens because the truncated LPS made them vulnerable to host defense mechanisms, including antimicrobial peptides. However, here we show that birds inoculated with high doses of the hptA mutant developed fowl cholera and the P. multocida isolates recovered from diseased birds no longer expressed truncated LPS. Sequencing analysis revealed that the in vivo-derived isolates had mutations in kdkA, thereby suppressing the production of glycoform A LPS. Interestingly, a number of the spontaneous KdkA mutant strains produced KdkA with a single amino acid substitution (A112V, R123P, H168Y, or D193N). LPS structural analysis showed that complementation of a P. multocida kdkA mutant with wild-type kdkA restored expression of glycoform A to wild-type levels, whereas complementation with any of the mutated kdkA genes did not. We conclude that in P. multocida KdkA, the amino acids A112, R123, H168, and D193 are critical for Kdo kinase function and therefore for glycoform A LPS assembly.

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