Enterobacteriaceae Short Question And Answers
Question 1. Name four groups of E-coli causing diarrheal diseases.
Answer:
Groups of E-coli causing diarrhoea:
1. Enteropathogenic E-coli [EPEC]
- Affects infants.
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2. Enterotoxigenic E-coli [ETEC]
- Causes diarrhea in children.
3. Enteroinvasive E-coli [EIEC]
4. Enterohaemorrhage E-coli [EHEC]
- Affects infants and young children.
5. Enteroaggregative E-coli [EAEC]
Question 2. Name bacteria causing urinary tract infection and what is significant bacteriuria.
Answer:
Bacteria causing urinary tract infection:
1. Gram negative bacilli.
- E-coli.
- Klebsiella sp.
- Pseudomonas aeruginosa.
2. Gram positive cocci.
- Enterococci.
- St. Aureus.
3. Miscellaneous:
- M. Tuberculosis.
- Salmonellae.
- St. Pyogenes.
Significant bacteriuria:
- Kass gave a criterion for active bacteriuria.
Question 3. Enterotoxin.
Answer:
They are produced by enterotoxigenic strains of E.coli.
They are:
- Heat labile toxin (LT)
- Heat-stable toxin (ST)
