Seasonal Variation in Campylobacter-contaminated Retail Chicken Products: A Year-Round Investigation in Japan

Ishihara, Katsuya; Takahashi, Ryuta; Andoh, Masako; Ueno, Hiroshi; Muramatsu, Yasukazu; Tsutsumi, Yutaka

doi:10.1292/jvms.11-0110

Cited by 15 publications

(16 citation statements)

References 8 publications

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“…Several other investigations have reported seasonality of Campylobacter colonization in poultry with peaks observed in the summer [108][109][110][111][112][113][114][115]. Moreover studies have shown seasonality in the isolation of Campylobacter from retail chicken [116][117][118]. These findings suggest that climatic factors may be important for Campylobacter infections in broilers and humans in these countries.…”

Section: Seasonal Patterns Of Campylobacter Infectionsmentioning

confidence: 90%

Human and Animal Thermophilic Campylobacter infections in East African countries: Epidemiology and Antibiogram

Komba¹

2017

BJSTR

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Section: Seasonal Patterns Of Campylobacter Infectionsmentioning

confidence: 90%

Human and Animal Thermophilic Campylobacter infections in East African countries: Epidemiology and Antibiogram

Komba¹

2017

BJSTR

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“…Contamination with antimicrobial‐resistant bacteria in meat products has previously been investigated . However, when meat products are contaminated, bacteria are generally heat‐inactivated before consumption.…”

mentioning

confidence: 99%

Distribution of antimicrobial‐resistant lactic acid bacteria in natural cheese in Japan

Ishihara

Nakajima²,

Kishimoto³

et al. 2013

Microbiology and Immunology

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To determine and compare the extent of contamination caused by antimicrobial-resistant lactic acid bacteria (LAB) in imported and domestic natural cheeses on the Japanese market, LAB were isolated using deMan, Rogosa and Sharpe (MRS) agar and MRS agar supplemented with six antimicrobials. From 38 imported and 24 Japanese cheeses, 409 LAB isolates were obtained and their antimicrobial resistance was tested. The percentage of LAB resistant to dihydrostreptomycin, erythromycin, and/or oxytetracycline isolated from imported cheeses (42.1%) was significantly higher than that of LAB resistant to dihydrostreptomycin or oxytetracycline from cheeses produced in Japan (16.7%; P ¼ 0.04). Antimicrobial resistance genes were detected in Enterococcus faecalis (tetL, tetM, and ermB; tetL and ermB; tetM) E. faecium (tetM), Lactococcus lactis (tetS), Lactobacillus (Lb.), casei/paracasei (tetM or tetW), and Lb. rhamnosus (ermB) isolated from seven imported cheeses. Moreover, these E. faecalis isolates were able to transfer antimicrobial resistance gene(s). Although antimicrobial resistance genes were not detected in any LAB isolates from Japanese cheeses, Lb. casei/paracasei and Lb. coryniformis isolates from a Japanese farm-made cheese were resistant to oxytetracycline (minimal inhibitory concentration [MIC], 32 mg/mL). Leuconostoc isolates from three Japanese farm-made cheeses were also resistant to dihydrostreptomycin (MIC, 32 to > 512 mg/mL). In conclusion, the present study demonstrated contamination with antimicrobial-resistant LAB in imported and Japanese farm-made cheeses on the Japanese market, but not in Japanese commercial cheeses.

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“…This survey was conducted between the months of May, June and Sept. It has been reported that the percentage of contaminated chicken products between July and November is higher than that in April and May (Ishihara et al, 2012). In this study, direct plating was used without enrichment broth in order to obtain the bacterial counts in liver.…”

Section: Resultsmentioning

confidence: 99%

Surveillance of Amyloid Deposition and Bacterial Contamination in Chicken Liver from Meat Market

et al. 2014

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From the standpoint of poultry meat hygiene, amyloid deposition and bacterial contamination in livers of 197 mature white layer chickens from a slaughterhouse and 100 young broiler breeder chickens from 5 different retail butcher shops were examined. Amyloid deposition was detected in 1 liver from 2-years-old layer using alkaline Congo red staining and immunohistochemical examination, but no amyloid deposition was observed in 100 livers from young broiler. Total bacterial counts in the chicken livers were examined using nutrient, desoxycholate hydrogen sulfate and mCCDA agar plates, but no close relationship between amyloid deposition and bacterial contamination (counts and species) was observed in this study. These results suggest there is low incidence of systemic amyloid deposition in chicken liver from meat market.

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Seasonal Variation in Campylobacter-contaminated Retail Chicken Products: A Year-Round Investigation in Japan

Cited by 15 publications

References 8 publications

Human and Animal Thermophilic Campylobacter infections in East African countries: Epidemiology and Antibiogram

Human and Animal Thermophilic Campylobacter infections in East African countries: Epidemiology and Antibiogram

Distribution of antimicrobial‐resistant lactic acid bacteria in natural cheese in Japan

Surveillance of Amyloid Deposition and Bacterial Contamination in Chicken Liver from Meat Market

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