Lecture Microbiology - Chapter 22: Oral and gastrointestinal diseases. This chapter presents the following content: Anatomy review, bacterial oral cavity disease, viral/fungal oral cavity disease, bacterial gastrointestinal intoxications, other enteric intoxications,. | ORAL AND GASTROINTESTINAL DISEASES CHAPTER 22 Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Anatomy Review Mouth Stomach Hepatobiliary tree Small Intestine Large Intestine © 2012 John Wiley & Sons, Inc. All rights reserved. Bacterial Oral Cavity Disease Dental Plaque – Accumulations of dextrans (biofilm) – May calcify Dental Caries – Streptococcus mutans – Lactic acid erodes dental enamel Periodontal disease – Tooth support structures – Gingivitis – gum inflammation – Periodontitis – root of tooth also affected © 2012 John Wiley & Sons, Inc. All rights reserved. Viral / Fungal Oral Cavity Disease Mumps – Paramyxovirus – URT and salivary glands are affected – Resurgence recently due to complacency and failure to vaccinate – Complications – male sterility, meningitis, eye, ear infections, attack on other exocrine/ endocrine glands Thrush © 2012 John Wiley & Sons, Inc. All rights reserved. Bacterial Gastrointestinal Intoxications Staphylococcal Enterotoxicosis Staphylococcus aureus – High starch or cream content, high protein foods Foods subjected to temperature abuse – Cooked foods need to be covered/refrigerated to avoid bacterial growth and toxin production Toxin can survive 30 minutes of boiling Low mortality Diarrhea symptoms 1-8 hr after food consumption © 2012 John Wiley & Sons, Inc. All rights .
