scholarly journals Isolation and identification of Avibacterium paragallinarum, the causal agent of infectious coryza (IC) from layer chickens in Bangladesh

2014 ◽  
Vol 11 (1) ◽  
pp. 87-96 ◽  
Author(s):  
S Akter ◽  
M Ali ◽  
PM Das ◽  
MM Hossain
Keyword(s):  
Causal Agent ◽  
Etiological Agent ◽  
Glandular Cell ◽  
Nasal Passage ◽  
Nasal Discharge ◽  
Isolation And Identification ◽  
Nasal Sinus ◽  
Infectious Coryza ◽  
Avibacterium Paragallinarum ◽  
Layer Chickens

This study was carried out for the isolation and identification of Avibacterium paragallinarum, the etiological agent of infectious coryza (IC). Pathological changes were also investigated that occurred in organs in layer chickens obtained from some selected areas of Bangladesh. A nasal swabs (n=30) from dead chickens and four swabs from live chickens were collected aseptically. The organisms from swabs were cultured in different media, stained, and followed by sugar fermentation and biochemical tests for identification of causal agent. Histopathology of the affected tissues was also carried out. Swabs from nasal passage (n=30) of dead birds died of other diseases cultured but no A. paragallinarum was isolated and identified. Two out of four suspected clinical cases of IC was confirmed by isolation of A. paragallinarum. The clinical signs of all four cases were nasal discharge; conjunctivitis with swelling of the sinuses, face and wattles; decreased feed and water intake with reduced egg production. At necropsy, hemorrhages were in mucous membrane of nasal passage and trachea. Histopathology of the nasal septum showed acanthosis, congestion, mucous glandular cell hyperplasia, hyperplasia of nasal sinus and parakeratosis. Further studies involving serological and molecular identification of the etiological agent of IC are warranted. DOI: http://dx.doi.org/10.3329/jbau.v11i1.18218 J. Bangladesh Agril. Univ. 11(1): 87-96, 2013

scholarly journals Pathogenesis of Infectious Coryza in Chickens (Gallus gallus) by Avibacterium paragallinarumn Isolate of Bangladesh

2013 ◽  
Vol 11 (1) ◽  
pp. 39-46 ◽  
Author(s):  
M Ali ◽  
MS Hossain ◽  
S Akter ◽  
MAHNA Khan ◽  
MM Hossain
Keyword(s):  
Culture Broth ◽  
Control Group ◽  
Nasal Passage ◽  
Nasal Discharge ◽  
Post Inoculation ◽  
Fatty Change ◽  
Infectious Coryza ◽  
Avibacterium Paragallinarum ◽  
Group A ◽  
Group B

An investigation was conducted to isolate and identify the causal agent of infectious coryza (IC) with pathogenesis study by local isolate of Avibacterium paragallinarum in chicks in Bangladesh. One isolate of A. paragallinarum was used to study the experimental pathogenesis. For this, 14 days old 24 chicks were grouped into two (A and B) and each group contained 12 birds. Chicks of group A were inoculated with 1ml of 2 days old nutrient broth and were kept as control group while group B were inoculated with 1 ml of 2 days old culture broth of A. paragallinarum. To study the pathology, 4 birds from each group were sacrificed on day 3, 5 and 7 of post inoculation. Sacrificed birds of group A did not reveal any clinical sign and lesion. Chicks of group B showed mild nasal discharge, conjunctivitis, depression and inability to move. The gross lesions of the chicks of group B included mucous in nasal passage, conjunctivitis, swelling of sinuses and face and congested lungs. The microscopic lesions of the chicks of this group were acanthosis and congested blood vessels of nasal passage, pneumonic lesion of lung, focal hepatitis of liver and fatty change and lipid nodules in macrophages of heart which were progressively prominent on day 7 of bacterial inoculation. A. paragallinarum was reisolated from day 7 of post inoculation (PI) from nasal passage of chicks in which lesions were prominent. The proposed experimental pathogenesis was after intranasal inoculation with A. paragallinarum, rhinitis developed, bacteria entered into blood, reached different organs producing lesions. The lesions which are discussed here (rhinitis in association with focal hepatitis, fatty change in heart with lipid granuloma, progressive pneumonic lesions) are not usually present in adult and young birds. DOI: http://dx.doi.org/10.3329/agric.v11i1.15240 The Agriculturists 2013; 11(1) 39-46

scholarly journals Isolation and Identification of Avibacterium paragallinarum from Layer Chickens in Gazipur, Bangladesh

2014 ◽  
Vol 3 (1) ◽  
pp. 9-11 ◽  
Author(s):  
Sharmin Akter ◽  
Sukumar Saha ◽  
Kamrul Ahmed Khan ◽  
Md Mansurul Amin ◽  
Md Ehsanul Haque
Keyword(s):  
Antibiotic Sensitivity ◽  
Biochemical Properties ◽  
Isolation And Identification ◽  
Sugar Fermentation ◽  
Infectious Coryza ◽  
Avibacterium Paragallinarum ◽  
Layer Chickens ◽  
Tissue Specimens ◽  
Indole Production

An investigation was conducted for isolation, identification and determination of antibiotic sensitivity of Avibacterium paragallinarun, the causal agent of infectious coryza, from layer chickens. A total of 21 samples with characteristic symptoms of the disease were collected from a Hatchery of Gazipur. Tissue specimens obtained aseptically from swollen infra orbital sinus and tracheal swab were processed, of which, 3 were found positive while the rest 18 were negative. Isolation of bacteria was performed by first putting the specimen in Nicotinamide adenine dinucleotide (NAD) enriched phosphate buffer broth, anaerobically incubated for 24 hours followed by culturing loopful of broth on Blood agar (BA) and Chocolate agar (CA) plates enriched with NAD and streaked with feeder organism of Staphylococcus. aureus. On 24 hours of anaerobic incubation (candle jar method), dew drop satellite colonies of A. paragallinarum were visible on the culture plates. Cultural characteristics of bacteria as well as their staining, morphological, motility and biochemical properties such as sugar fermentation, MR and V-P tests, Indole production and catalase tests were recorded for identification. Further, antibiogram study revealed that the isolates were sensitive to Ciprofloxacin, Chloramphenicol and Gentamicin but resistant to Ampicillin, Amoxycillin, Oxytetracycline, Erythromycin and Sulphamethoxazole. DOI: http://dx.doi.org/10.3329/mh.v3i1.19769 Microbes and Health, June 2014. 3(1): 9-11

scholarly journals Pathological study on the upper respiratory tract infection of chickens and isolation, identification of causal bacteria

2012 ◽  
Vol 28 (2) ◽  
pp. 60-69 ◽  
Author(s):  
N. Popy ◽  
M. Asaduzzaman ◽  
M. S. Miah ◽  
A. Siddika ◽  
M. A. Sufian ◽  
...  
Keyword(s):  
Plasma Cells ◽  
Nasal Passage ◽  
Upper Respiratory Tract ◽  
Pathological Study ◽  
Biochemical Tests ◽  
Isolation And Identification ◽  
Nasal Sinus ◽  
Mucosal Layer ◽  
Identification Of Bacteria ◽  
Upper Respiratory

The proportional occurrence of bacteria and pathological lesions in the nasal sinuses and trachea of dead chickens were determined during 2008-2009. Nasal sinus and tracheal swabs from 50 dead birds were collected in sterile nutrient broth. The histopathological samples were collected in 10% neutral buffered formalin and studied with light microscope. The isolation and identification of bacteria were performed by culture, staining and biochemical tests. The proportional occurrence of bacteria in trachea (n = 50) and nasal sinuses (n = 50) of dead chickens was Klebsiella sp. (6.0%), Escherichia coli (38.8%), Pasteurella sp. (8.6%), Bacillus sp. (5.2%) and Staphylococcus sp. (41.4%). Congested trachea (n=3) and mucus-filled sinuses (n = 3) of dead chickens were studied for histopathology. Microscopically, rhinitis was characterized by infiltration of macrophages, lymphocytes and few neutrophils. The epithelium of nasal passage revealed pyknotic nucleus with disruption of epithelium. There was sinusitis with purulent and necrotic changes around the nasal sinus. The nasal sinuses were infiltrated with macrophages, lymphocytes and few plasma cells. The mucosal layer of the nasal turbinates showed pus and necrosis. There was disruption of different mucous glands with accumulation of macrophages, lymphocytes and plasma cells in the submucosa.DOI: http://dx.doi.org/10.3329/bvet.v28i2.10677 Bangl. vet. 2011. Vol. 28, No. 2, 60 – 69

scholarly journals Incidence, Serotyping and Antimicrobial Susceptibility Profile of Avibacterium Paragallinarum Isolated From Local Commercial Poultry of Balochistan

2020 ◽  
Author(s):  
Ghulam Muhammad ◽  
muhammad kamran Taj ◽  
Imran Taj ◽  
Iqbal Panezai ◽  
Ferhat Abbas ◽  
...  
Keyword(s):  
Antimicrobial Susceptibility ◽  
Optimal Growth ◽  
Nasal Discharge ◽  
Pathogenicity Test ◽  
Upper Respiratory Tract ◽  
Infectious Coryza ◽  
Avibacterium Paragallinarum ◽  
Facial Swelling ◽  
Serotype B ◽  
Tract Disease

Abstract Background Infectious coryza (IC) caused by Avibacterium paragallinarum, a Gram negative, non-motile coccobacilli, is a severe upper respiratory tract disease of poultry. This study aimed to report on the isolation rate and serotyping of Avibacterium paragallinarum causing Infectious Coryza (IC) in commercial layer poultry in Balochistan. Results Total 500 samples were collected from IC-suspected or recently dead birds Results revealed that 80.62% of sample were found positive for A. paragallinarum. Of these, serotype B was 59.60% and serotype C was 21.02%. The isolates of A. paragallinarum were growing well at 35–37 oC, however, growth rate was declined at 24 oC, and 42 oC. Similarly, A. paragallinarum showed optimal growth between pH 5 and 9, but the superlative pH growth values were from 6 to 8 pH. Antimicrobial susceptibility test showed that all tested isolates displayed resistance against metronidazole, colistin sulphate, bacitracin, streptomycin, chloramphenicol and lincomycine, while were found susceptible to tetracycline, erythromycin, vancomycin, amoxicillin, and ciprofloxacin. Pathogenicity test performed indicated that experimental birds showed signs of dullness, fever, serous nasal discharge and facial swelling with pus inside infra-orbital sinus, severe congestion in the trachea and partial cloudiness of air sacs. conclusions Overall, we report, for the first time, on high incidence rate of pathogenic A. paragallinarum among layer birds.

Supernumerary tooth in nasopalatine canal: a rare cause of septal cartilage collapse

2021 ◽  
Vol 14 (9) ◽  
pp. e245103
Author(s):  
Rasads Misirovs ◽  
Avinash Kumar Kanodia ◽  
Christopher McDonald ◽  
Richard Green
Keyword(s):  
Inferior Turbinate ◽  
Close Relation ◽  
Septal Cartilage ◽  
Nasal Passage ◽  
Nasal Discharge ◽  
Supernumerary Tooth ◽  
Nasopalatine Canal ◽  
Inferior Meatus ◽  
History Of ◽  
The Right

Mesiodens is the most common type of supernumerary tooth, located between the maxillary central incisors in close relation to the nasopalatine canal. A 20-year-old man presented with right-sided nasal blockage, nasal discharge and collapsed nose without history of trauma. Imaging revealed a calcified mass in the inferior meatus extending into dilated nasopalatine canal. Endoscopic removal of the mass revealed tuberculate appearance of an incompletely developed tooth, consistent with mesiodens. Based on the history of septal cartilage collapse with right-sided mucopurulent discharge, endoscopic findings of the right inferior turbinate being adherent to the septal cartilage and the underlying mesiodens, we believe that the patient developed a septal abscess secondary to infection in nasal mucosa surrounding the mesiodens causing collapse of septal cartilage. While a tooth or tooth-like mass causing nasal passage air-flow obstruction is uncommon, we believe that this is the first reported case of mesiodens presenting with septal cartilage collapse.

scholarly journals Otitis and meningoencephalitis associated with infectious coryza (Avibacterium paragallinarum) in commercial broiler chickens

2018 ◽  
Vol 30 (5) ◽  
pp. 784-788 ◽  
Author(s):  
Manuela Crispo ◽  
C. Gabriel Sentíes-Cué ◽  
George L. Cooper ◽  
Grace Mountainspring ◽  
Charles Corsiglia ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Animal Health ◽  
Clinical Signs ◽  
Economic Losses ◽  
Laboratory System ◽  
Sequencing Analysis ◽  
Contributing Factors ◽  
Infectious Coryza ◽  
Avibacterium Paragallinarum ◽  
Commercial Broiler

Infectious coryza, caused by Avibacterium paragallinarum, is an acute respiratory disease of poultry that can result in substantial morbidity, mortality, and economic losses. In March 2017, the Turlock branch of the California Animal Health and Food Safety laboratory system encountered an unusual clinical and pathologic presentation of infectious coryza in 6 live, 29-d-old, commercial broiler chickens that were submitted for diagnostic investigation. Antemortem evaluation revealed severe neurologic signs, including disorientation, torticollis, and opisthotonos. Swollen head–like syndrome and sinusitis were also present. Histologically, severe sinusitis, cranial osteomyelitis, otitis media and interna, and meningoencephalitis were noted, explaining the clinical signs described. A. paragallinarum was readily isolated from the upper and lower respiratory tract, brain, and cranial bones. Infectious bronchitis virus (IBV) was also detected by PCR, and IBV was isolated in embryonated chicken eggs. Based on sequencing analysis, the IBV appeared 99% homologous to strain CA1737. A synergistic effect between A. paragallinarum and IBV, resulting in exacerbation of clinical signs and increased mortality, may have occurred in this case. A. paragallinarum should be considered among the possible causes of neurologic signs in chickens. Appropriate media should be used for bacterial isolation, and the role of additional contributing factors and/or complicating agents should be investigated in cases of infectious coryza.

scholarly journals Isolation, identification, and serotyping of Avibacterium paragallinarum from quails in Indonesia with typical infectious coryza disease symptoms

2018 ◽  
Vol 11 (4) ◽  
pp. 519-524 ◽  
Author(s):  
Agnesia Endang Tri Hastuti Wahyuni ◽  
Charles Rangga Tabbu ◽  
Sidna Artanto ◽  
Dwi Cahyo Budi Setiawan ◽  
Sadung Itha Rajaguguk
Keyword(s):  
Disease Symptoms ◽  
Infectious Coryza ◽  
Avibacterium Paragallinarum

scholarly journals First report on the molecular detection, phylogeny, virological and pathological investigations of Avibacterium paragallinarum in chickens in Turkey

2020 ◽  
Vol 76 (03) ◽  
pp. 6378-2020
Author(s):  
SAJID UMAR ◽  
HASAN ONGOR ◽  
ERHAN BAYRAKTAR ◽  
HAZAL OZTURK GURGEN ◽  
BELGI DIREN SIGIRCI ◽  
...  
Keyword(s):  
Viral Infections ◽  
Control Strategies ◽  
Inflammatory Cells ◽  
The United States ◽  
Molecular Characteristics ◽  
Nasal Discharge ◽  
Direct Pcr ◽  
Tissue Samples ◽  
Avibacterium Paragallinarum ◽  
Species Specific

Avibacterium paragallinarum is an important pathogen affecting the respiratory tract of chickens. There is a paucity of information on the molecular characteristics and pathology of A. paragallinarum in Turkish poultry flocks. In the present study, broiler and layer flocks (n = 2) suspected of viral infections with serious respiratory signs and significant mortality were visited. Chickens showed various disease signs and necropsy lesions, including purulent nasal discharge, respiratory distress, facial edema, sticky eyes, mucoid tracheitis, hemorrhagic inflammation of the infraorbital sinuses along with fibrinous mass and conjunctivitis. Histopathological lesions included loss of cilia along with necrosis and exfoliation of the superficial mucosal epithelium of the trachea, facial cellulitis, dermatitis, fibrinous plasmatic edema and infiltration of inflammatory cells, especially heterophils. A. paragallinarum was detected in tissue samples by species-specific polymerase chain reaction (PCR). The sequencing and phylogenetic analysis of the core region of the hemagglutinin (HA) gene revealed that Turkish strains detected here belonged to serotype A (serovar A1). They were related to strains reported from India (VRDC), the United States (0083), and Japan (0221), which are representatives of serovar A1. A homology of 88-90% was found between Indian strains and the Turkish strains detected in this study. Surprisingly, only vaccine strains of infectious bronchitis virus (IBV) were detected as a co-infecting agent in all samples positive for A. paragallinarum. Our findings suggest that A. paragallinarum may be an emerging pathogen in Turkish poultry flocks, and direct PCR may facilitate rapid diagnosis of infectious coryza. These results will also help to develop control strategies for A. paragallinarum.

scholarly journals ISOLASI DAN IDENTIFIKASI PATOGEN GETAH KUNING MANGGIS MELALUI PENDEKATAN POSTULAT KOCH DAN ANALISIS SECARA MOLEKULER

2014 ◽  
Vol 14 (2) ◽  
pp. 142-151
Author(s):  
I Ketut Suada ◽  
Ni Wayan Suniti
Keyword(s):  
Fusarium Oxysporum ◽  
Molecular Analysis ◽  
Fruit Quality ◽  
Irrigation Treatment ◽  
Causal Agent ◽  
Isolation And Identification ◽  
Fungus Species ◽  
Cell Turgor ◽  
Bitter Fruit

Isolation and identification of mangosteen yellow latex pathogen through Koch’s Postulate application and molecular analysis. The yellow latex disease decreases fruit quality of mangosteen because exogenic latex causes dirty fruit and the endogenic latex makes the bitter fruit taste and does not deserve to be consumed. The causal agent of the disease caused phusilogical disorder so that cells break due to unstability of cell turgor, the drift irrigation treatment was able to decrease the disease of 35.22%, therefore the causal agent could be microbe that promote the yellow latex. This research was aimed to find the yellow latex pathogens with its characteristics. The Koch Postulate was apllied to isolate and proved the microbes associated to the yellow latex and molecular analysis was constructed subsequently to find the microbe species.  The result of the research proved that there were three fungus species as the biotic agent responsible to the disease. The fungus were Verticillium albo-atrum with the highest pathogenecity ( 74.87%), followed by Fusarium oxysporum ( 70.15%), and Pestalotia macrotricha (20.32%).

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