Gastroenteritis Flashcards
What is gastroenteritis?
Temporary infective disorder due to an enteric infection
What causes gastroenteritis?
Virus - rotavirus, adenovirus, norovirus
Bacteria - campylobacter
Parasites
What percentage of the population develop gastroenteritis each year?
20%
How is rotavirus spread?
Faecal oral route
When does rotavirus peak in incidence?
Winter months
Describe the rotavirus vaccine
Oral vaccine
Given at 8 and 12 weeks
What are noroviruses?
Single stranded RNA viruses
How is norovirus spread?
Faecal oral route or environmental contamination
Which age group is more at risk of adenovirus?
<2yo
What causes campylobacter gastroenteritis?
Undercooked meat
Unpasteurised milk
Which bacteria is the most common cause of gastroenteritis?
Campylobacter
Which form of E.coli can have life threatening complications?
VTEC E.coli 0157:H7
What are the complications of E.coli caused gastroenteritis
Haemorrhagic colitis
Haemolytic uremic syndrome
Toxic megacolon
Reactive complications - arthritis, carditis, urtication, erythema nodosum, conjunctivitis, reiters syndrome, acquired/secondary lactose intolerance
List the clinical features of gastroenteritis
Sudden onset of loose/watery stool with/without vomit
Abdo pain
Mild fever
Recent contact with someone with diarrhoea and vomiting
Dehydration
Who is most at risk of dehydration due to gastroenteritis?
Young children <6months
>5 stools in last 24 hours
Vomit >2 in last 24 hours
Stopped breast feeding during the illness