Frequency of isolation of Campylobacter from roasted chicken samples from Mexico City.
The presence of Campylobacter spp. was investigated in 100 samples of roasted chicken tacos sold in well-established commercial outlets and semisettled street stands in Mexico City. From 600 colonies displaying Campylobacter morphology only 123 isolates were positive. From these isolates, 51 (41%) were identified as C. jejuni, 23 (19%) as C. coli, and 49 (40%) as other species of this genus. All of the 27 positive samples came from one location where handling practices allowed cross-contamination of the cooked product. The results indicate that these ready-to-consume products are contaminated with these bacteria, representing a potential risk for consumers, especially in establishments lacking adequate sanitary measures to prevent cross-contamination.
Quiñones-Ramírez
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EI
Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Col. Santo Tomás, Mexico.
Vázquez-Salinas
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C
Rodas-Suárez
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OR
Ramos-Flores
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MO
Rodríguez-Montaño
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R
D000818:Animals; D017000:Campylobacter coli / Q000302:isolation & purification*; D016123:Campylobacter jejuni / Q000302:isolation & purification*; D002645:Chickens; D005516:Food Microbiology; D008800:Mexico; D011202:Poultry Products / Q000382:microbiology*