Task: Answer Verification
Input (English): Question: Do colonisation density and topographic localisation of Helicobacter pylori depend on the cagA status?
Answer: Antibody titres do not correlate with H pylori density and there is no difference in density between cagA(+) and cagA(-)H pylori strains. In addition there is no difference in topographic localisation between cagA(+) and cagA(-) H pylori strains.
Output (English): no