An Epidemiological Study of Campylobacter jejuni in a Poultry Broiler Flock

1996 ◽  
pp. 335-339
Author(s):  
Robert B. Wallace ◽  
Patricia Desmarchelier ◽  
John B. Woolcock
Keyword(s):  
Epidemiological Study ◽  
Campylobacter Jejuni ◽  
Broiler Flock

scholarly journals Epidemiological aspects ofCampylobacter jejunienteritis

1982 ◽  
Vol 89 (1) ◽  
pp. 163-170 ◽  
Author(s):  
G. Norkrans ◽  
Å. Svedhem
Keyword(s):  
Epidemiological Study ◽  
Campylobacter Jejuni ◽  
Family Members ◽  
Control Group ◽  
Household Members ◽  
Campylobacter Infection

SUMMARYAn epidemiological study onCampylobacter jejunienterocolitis was performed in an urban Swedish community. The study included 55 patients gathered during a six-month period. Forty-one of the 55 patients (75%) were infected outside Sweden. Campylobacter enterocolitis was rare among children within the country. Patients infected in Sweden had eaten chicken significantly more often than a corresponding control group. Seven out of nine chicken consuming campylobacter patients also had prepared the fresh chicken alone, and none of their family members became ill. Thus the preparation of food contaminated withCampylobacterseems to elevate the risk for contracting the disease. Sick household pets transmitted the campylobacter infection to two patients. Forty-six of the patients had a total of 85 close household members. Three definite secondary cases were found. There was no evidence of transmissionof Campylobacterby food prepared by two cooks who were working while still being asymptomatic excreters. Clinical reinfection withCampylobacterwas observed in one patient. No patients became long-term carriers ofCampylobacter.

scholarly journals Dynamics of Dual Infection with Campylobacter jejuni Strains in Chickens Reveals Distinct Strain-to-Strain Variation in Infection Ecology

2014 ◽  
Vol 80 (20) ◽  
pp. 6366-6372 ◽  
Author(s):  
Gemma Chaloner ◽  
Paul Wigley ◽  
Suzanne Humphrey ◽  
Kirsty Kemmett ◽  
Lizeth Lacharme-Lora ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Broiler Chickens ◽  
Clonal Complex ◽  
Dual Infection ◽  
Sequence Type ◽  
Gi Tract ◽  
Content Type ◽  
Infection Dynamics ◽  
Broiler Flock ◽  
High Level

ABSTRACTAlthough multiple genotypes ofCampylobacter jejunimay be isolated from the same commercial broiler flock, little is known about the infection dynamics of different genotypes within individuals or their colonization sites within the gut. Single experimental infections withC. jejuniM1 (sequence type 137, clonal complex 45) andC. jejuni13126 (sequence type 21, clonal complex 21) revealed that 13126 colonized the ceca at significantly higher levels. The dissemination and colonization sites of the twoC. jejunistrains then were examined in an experimental broiler flock. Two 33-day-old broiler chickens were infected with M1 and two with 13126, and 15 birds were left unchallenged. Cloacal swabs were taken postinfection to determine the colonization and shedding of each strain. By 2 days postinfection (dpi), 8/19 birds were shedding M1 whereas none were shedding 13126. At 8 dpi, all birds were shedding both strains. At 18 dpi, liver and cecal levels of each isolate were quantified, while in 10 birds they also were quantified at nine sites throughout the gastrointestinal (GI) tract. 13126 was found throughout the GI tract, while M1 was largely restricted to the ceca and colon. The livers of 7/19 birds were culture positive for 13126 only. These data show that 13126 has a distinctly different infection biology than strain M1. It showed slower colonization of the lower GI tract but was more invasive and able to colonize at a high level throughout the GI tract. The finding thatC. jejunistrains have markedly different infection ecologies within the chicken has implications for control in the poultry industry and suggests that the contamination risk of edible tissues is dependent on the isolate involved.

scholarly journals Genotypic Diversity among Campylobacter jejuni Isolates in a Commercial Broiler Flock.

1997 ◽  
Vol 63 (5) ◽  
pp. 1874-1877 ◽  
Author(s):  
L M Thomas ◽  
K A Long ◽  
R T Good ◽  
M Panaccio ◽  
P R Widders
Keyword(s):  
Campylobacter Jejuni ◽  
Genotypic Diversity ◽  
Broiler Flock ◽  
Commercial Broiler

scholarly journals Evidence that Certain Clones ofCampylobacter jejuni Persist during Successive Broiler Flock Rotations

2001 ◽  
Vol 67 (6) ◽  
pp. 2739-2745 ◽  
Author(s):  
L. Petersen ◽  
A. Wedderkopp
Keyword(s):  
Campylobacter Jejuni ◽  
Gel Electrophoresis ◽  
Broiler Chicken ◽  
Pulsed Field Gel Electrophoresis ◽  
Surveillance Program ◽  
Persistent Infections ◽  
Serotype O ◽  
Broiler Flock ◽  
Ofcampylobacter Jejuni

ABSTRACT Through the national surveillance program forCampylobacter spp., nine broiler chicken farms that were infected with Campylobacter jejuni in at least five rotations in 1998 were identified. One additional farm, located at the island of Bornholm where divided slaughter is used extensively, was also selected. Twelve broiler houses located on 10 farms were included in the study. The C. jejuni isolates collected from the selected houses during the surveillance were typed usingfla typing and macrorestriction profiling (MRP), and a subset of the isolates, representing each of the identified clones, was serotyped according to the Penner scheme. Pulsed-field gel electrophoresis typing using SmaI andKpnI revealed that the majority of houses (11 of 12) carried identical isolates in two or more broiler flocks. Such persistent clones were found in 63% of all flocks (47 of 75). The majority of persistent clones (7 of 13) had fla type 1/1, but MRPs distinguished between isolates from different houses, andfla type 1/1 clones belonged to different serotypes. Seven houses carried persistent clones that covered an interval of at least four broiler flock rotations, or at least one half year. The dominant fla type (1/1) was represented by 44% of isolates, or by at least one isolate from 31 of 62 broiler flocks. This significantly exceeded the prevalence of fla type 1/1C. jejuni isolates that we have estimated from other studies and suggests that isolates carrying this flatype are overrepresented in flocks with recurrentCampylobacter problems. The MRPs of clones belonging tofla type 1/1 serotype O:2 isolated from persistently infected flocks shared a high percentage of bands compared to the remaining isolates, indicating that some clones that have the ability to cause persistent infections in broiler farms are highly related to each other.

scholarly journals Routes for Campylobacter contamination of poultry meat: epidemiological study from hatchery to slaughterhouse

2003 ◽  
Vol 131 (3) ◽  
pp. 1169-1180 ◽  
Author(s):  
L. HERMAN ◽  
M. HEYNDRICKX ◽  
K. GRIJSPEERDT ◽  
D. VANDEKERCHOVE ◽  
I. ROLLIER ◽  
...  
Keyword(s):  
Epidemiological Study ◽  
Campylobacter Jejuni ◽  
Poultry Meat ◽  
Campylobacter Coli

From April 1998 to March 2000, 18 broiler flocks were followed from the hatchery to the slaughterhouse. Campylobacter was not found in the hatchery, 1-day-old chicks or in the rearing house before the arrival of the chicks. The infection of broiler flocks increased continuously during the rearing time, with a total of seven positive flocks at the end of rearing. Farms with Campylobacter-positive broilers were characterized by the circulation of Campylobacter in the environment (puddles, dung hill) and on the footwear of the farmer. The administration of antibiotics did not significantly reduce Campylobacter shedding. With the exception of one flock during rearing and a few flocks in the slaughterhouse with a mixed Campylobacter coli–Campylobacter jejuni infection, C. jejuni exclusively was found both during rearing and on the carcasses. A significant correlation exits between the contamination of the broilers during rearing and the carcasses after processing. No slaughterhouse was able to avoid contamination of carcasses when status-positive animals were delivered. Moreover, six negatively delivered flocks yielded positive carcasses, the result of a supplementary contamination, which occurred during transport and slaughtering.

Use of Live Cultures for Serotyping Campylobacter jejuni II. Further Experience and Use in an Epidemiological Study

1989 ◽  
Vol 12 (3) ◽  
pp. 306-309 ◽  
Author(s):  
R. Kahlich ◽  
Eva Aldova ◽  
I. Kušiak ◽  
O. Hausner ◽  
P. Roch ◽  
...  
Keyword(s):  
Epidemiological Study ◽  
Campylobacter Jejuni

Genotype dynamics of Campylobacter jejuni in a broiler flock

2005 ◽  
Vol 106 (1-2) ◽  
pp. 109-117 ◽  
Author(s):  
Helena Höök ◽  
Mohammed Abdel Fattah ◽  
Henrik Ericsson ◽  
Ivar Vågsholm ◽  
Marie-Louise Danielsson-Tham
Keyword(s):  
Campylobacter Jejuni ◽  
Broiler Flock

Ultrastructure of periplasmic bodies in gram-negative bacteria

1990 ◽  
Vol 48 (3) ◽  
pp. 640-641
Author(s):  
Xie Nianming ◽  
Ding Shaoqing ◽  
Wang Luping ◽  
Yuan Zenglin ◽  
Zhan Guolai ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Campylobacter Jejuni ◽  
Proteus Mirabilis ◽  
Shigella Flexneri ◽  
Morphological Description ◽  
Gram Negative Bacteria ◽  
Periplasmic Space ◽  
Clostridium Tetani ◽  
Gram Negative ◽  
Brucella Canis

Perhaps the data about periplasmic enzymes are obtained through biochemical methods but lack of morphological description. We have proved the existence of periplasmic bodies by electron microscope and described their ultrastructures. We hope this report may draw the attention of biochemists and mrophologists to collaborate on researches in periplasmic enzymes or periplasmic bodies with each other.One or more independent bodies may be seen in the periplasmic space between outer and inner membranes of Gram-negative bacteria, which we called periplasmic bodies. The periplasmic bodies have been found in seven species of bacteria at least, including the Pseudomonas aeroginosa. Shigella flexneri, Echerichia coli. Yersinia pestis, Campylobacter jejuni, Proteus mirabilis, Clostridium tetani. Vibrio cholerae and Brucella canis.

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