Subacute to Chronic Fowl Cholera in a Flock of Pharaoh Breeder Quail

Miguel, Borja de; Wang, C.; Maslin, William R.; Keirs, R. W.; Glisson, John R.

doi:10.2307/1592598

Cited by 11 publications

(6 citation statements)

References 19 publications

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“…The fatal infectious dose of P. multocida for mallards is as few as 12 cells ( 25 ). P. multocida can be transmitted through watering systems ( 26 ) (such as troughs and ponds that are shared by infected and healthy birds), by rodent infestations ( 27 ), and by the fecal-oral route ( 28 ), resulting in widespread infection and death. The most devastating outbreaks of avian cholera occur in locations where flocks of geese tend to migrate.…”

Section: Introductionmentioning

confidence: 99%

Capsular Polysaccharide Interferes with Biofilm Formation byPasteurella multocidaSerogroup A

Petruzzi

Briggs

Tatum

et al. 2017

mBio

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Pasteurella multocida is an important multihost animal and zoonotic pathogen that is capable of causing respiratory and multisystemic diseases, bacteremia, and bite wound infections. The glycosaminoglycan capsule of P. multocida is an essential virulence factor that protects the bacterium from host defenses. However, chronic infections (such as swine atrophic rhinitis and the carrier state in birds and other animals) may be associated with biofilm formation, which has not been characterized in P. multocida. Biofilm formation by clinical isolates was inversely related to capsule production and was confirmed with capsule-deficient mutants of highly encapsulated strains. Capsule-deficient mutants formed biofilms with a larger biomass that was thicker and smoother than the biofilm of encapsulated strains. Passage of a highly encapsulated, poor-biofilm-forming strain under conditions that favored biofilm formation resulted in the production of less capsular polysaccharide and a more robust biofilm, as did addition of hyaluronidase to the growth medium of all of the strains tested. The matrix material of the biofilm was composed predominately of a glycogen exopolysaccharide (EPS), as determined by gas chromatography-mass spectrometry, nuclear magnetic resonance, and enzymatic digestion. However, a putative glycogen synthesis locus was not differentially regulated when the bacteria were grown as a biofilm or planktonically, as determined by quantitative reverse transcriptase PCR. Therefore, the negatively charged capsule may interfere with biofilm formation by blocking adherence to a surface or by preventing the EPS matrix from encasing large numbers of bacterial cells. This is the first detailed description of biofilm formation and a glycogen EPS by P. multocida.

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Section: Introductionmentioning

confidence: 99%

Capsular Polysaccharide Interferes with Biofilm Formation byPasteurella multocidaSerogroup A

Petruzzi

Briggs

Tatum

et al. 2017

mBio

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“…After that first report others have described the diseases in several quail species (Myint and Carter, 1988; Miguel et al , 1998) indicating that quail are highly susceptible to P. multocida with a mortality that can reach 13%.…”

Section: Introductionmentioning

confidence: 99%

Identification and antimicrobial susceptibility patterns of Pasteurella multocida isolated from chickens and japanese quails in Brazil

Rigobelo¹,

Blackall²,

Maluta³

et al. 2013

Braz. J. Microbiol.

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A study was performed to verify the presence of Pasteurella multocida in eight different poultry groups of 90 birds each. Groups I to IV were chickens (I being > 6 weeks of age with a history of respiratory illness, II > 6 weeks of age and free of respiratory illness, III < 6 weeks of age with respiratory illness and IV being < 6 weeks of age and with no respiratory illness. Groups V to VIII had the matching characteristics of Groups I to V but consisted of Japanese Quails. The P. multocida isolation rate from the groups was as follows; Group I 56/90 (62.3%) Group II 18/90 (20.0%), Group III 12/90 (13.3%), Group IV 3/90 (3.33%), Group V 8/90 (8.88%), Group VI 2/90 (2.22%) Group VII 2/90 (2.22%) and Group VIII 1/90 (1.11%). These isolation rates were not significantly different within the groups of a bird type but the overall chicken isolation rate was significantly higher than the quail isolation rate (p < 0.01). All isolates were examined for their sensitivity to four antimicrobial agents. The results showed only low levels of resistance to the agents tested. The highest level of resistance detected was to cephalothin (5.1% of isolates) followed by amikacin (3.4%).

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“…Chicken less than 16 weeks of age and quails were reported to be resistant to fowl cholera as per NRC ( 1991), whereas in the present case fowl cholera occurred in 8 day old quail chicks. Mortality can vary from 60% (Myint and Carter, 1988;Miguel et al, 1998) to 99% (Bermudez et al, 1997) in natural outbreaks of fowl cholera in quails.…”

Section: Discussionmentioning

confidence: 99%

An outbreak of pasteurellosis in Japanese quail chicks (Coturnix coturnix Japonica)

Prasath¹,

Selvaraj²,

Ponnusamy³

et al. 2018

ijah

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Subacute to Chronic Fowl Cholera in a Flock of Pharaoh Breeder Quail

Cited by 11 publications

References 19 publications

Capsular Polysaccharide Interferes with Biofilm Formation byPasteurella multocidaSerogroup A

Capsular Polysaccharide Interferes with Biofilm Formation byPasteurella multocidaSerogroup A

Identification and antimicrobial susceptibility patterns of Pasteurella multocida isolated from chickens and japanese quails in Brazil

An outbreak of pasteurellosis in Japanese quail chicks (Coturnix coturnix Japonica)

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