Occurrence of Escherichia coli, Campylobcter, Salmonella and Shiga-Toxin Producing E. coli in Norwegian Primary Strawberry Production

International Journal of Environmental Research and Public Health

Gro S. Johannessen³  Karl F. Eckner⁴  Nina Heiberg¹  Marte Monshaugen⁵  Mumtaz Begum³  Marianne Økland³  Helga R. Høgåsen³  Mieke Uyttendaele²  Eelco Franz² 

[1] Gartnerhallen SA, P.O. Box 111 Alnabru, Oslo N-0614, Norway; E-Mail:Norwegian Veterinary Institute, P.O. Box 750 Sentrum, Oslo N-0106, Norway;;Norwegian Veterinary Institute, P.O. Box 750 Sentrum, Oslo N-0106, Norway; E-Mails:;Vann-og Avløpsetaten, P.O. Box 4704 Sofienberg, 0506 Oslo, Norway; E-Mail:;School of Veterinary Science, Norwegian University of Life Sciences, P.O. Box 8146 Dep., Oslo N-0033, Norway; E-Mail:

关键词: strawberries;    primary production;    E. coli;    Salmonella;    Campylobacter;    STEC;   

DOI  :  10.3390/ijerph120606919

来源: mdpi

【 摘 要 】

The aim of this study was to investigate the bacteriological quality of strawberries at harvest and to study risk factors such as irrigation water, soil and picker’s hand cleanliness. Four farms were visited during the harvest season in 2012. Samples of strawberries, irrigation water, soil and hand swabs were collected and analyzed for E. coli, Campylobacter, Salmonella and STEC Although fecal indicators and pathogens were found in environmental samples, only one of 80 samples of strawberries was positive for E. coli (1.0 log₁₀ cfu/g) and pathogens were not detected in any of the strawberry samples. The water samples from all irrigation sources were contaminated with E. coli in numbers ranging from 0 to 3.3 log₁₀ cfu/g. Campylobacter (8/16 samples) and Salmonella (1/16 samples) were isolated from samples with high numbers of E. coli. The water samples collected from a lake had lower numbers of E. coli than the samples from rivers and a stream. The present study indicated continuous background contamination in the primary production environment. Although the background contamination was not reflected on the strawberries tested here, the results must be interpreted with caution due to the limited number of samples.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.