Download

More documents

Recommendations

Info

Survival on foods and in humans• Acid resistance develops throughout the animalintestinal tract in the rumen, abomasum & intestines• Acid resistant pathogens in faeces may contaminatecarcasses during slaughter• Resistance may persist in adapted cells during coldstorage for periods >70 days• Cells from animals or foods are acid adapted forpersistance in the human stomach
Leyer and Johnson, 1992The influence of acid adaption on survival ofSalmonella in cheese1000% Survival1001010.10.01AdaptedNon-adapted0.0010.00010 20 40 60 80Days
Page 4 and 5: Bovine GI tractpH (6.0-7.0)pH (2.0-
Page 7: Pathogen survival in the GI tract
Page 11 and 12: Survival in the abomasum• Cells e
Page 13 and 14: Acid adaptation in the live animal
Page 15: Stresses which occur in foods & in
Page 19 and 20: Pathogen replication in Acanthamoeb
Page 21 and 22: Pathogen survival in protozoa• En
Page 23 and 24: E. coli O157:H7 producing vesicles

Download

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?