Gastrointestinal infections Flashcards
(13 cards)
What is Dysbiosis
Compositional and functional alterations of the microbiome
Name three sources of transmission of GI infections and how they’re transmitted
Water, Food, Soil and Faecal-oral transmission (BUM GUM)
List some symptoms of GI infections
- Abdominal pain
- Nausea
- Vomiting
- Diarrhoea
- Blood in faeces
- Fever
Laboratory investigations of GI infections
Visual assessment of
sample
Is Blood &/or mucus
present?
Bristol Stool chart can be used for lab investigations
What test is used in lab to grow infection?
Cultures
What diagnostic tests are used?
EIA and PCR
List 3 Pathogens that contribute to foodborne disease.
Norovirus, Salmonella, S.aureus
State the source, transmission and result of food poisoning from salmonella enteritidis
Source: Homemade mayo using raw eggs
Transmission: storage at room temperature promotes bacterial growth
Result: Gastroenteritis
State the source, transmission, and result of food poisoning from Shigella Spp (in children with diarrhea)
Source: Preschool
Transmission: contaminated hand to mouth
Result: Gatroenteritis
when does the onset of salmonella occur after ingestion and how long does it take to resolve?
The onset of the disease occurs 8 - 48hrs after ingestion and is normally resolved in 2-5 days
Give an example of a virus that causes GI infection, how its transmitted and its symptoms
Norovirus
transmission: contact with an infected person,
contaminated food and drink
Symptoms: Suddenly feeling sick, projectile vomiting and watery diarrhea
What is the duration of norovirus?
20-60 hours
you can continue to shed virus for 3 days after symptoms but can also be as long as 3 weeks
Give an example of a parasite that causes GI infection, and how it’s transmitted
Giardia intestinalis (G.lamblia)
transmission: waterborne diarrheal disease - e.g contaminated water supply
