A subset of passengers was asked to report on sanitation, swimming pools, and overall hygiene. Associations between exposures of interest and gastrointestinal symptoms were calculated using relative risk analyses. Either uncorrected c 2 or two-tailed Fisher exact p values were used where appropriate. Day 18 - cruise ended 25 May 1999. Day 33 - interviews commenced 9 June 1999.
Arrows indicate ports.
Cyclone occurred 22-23 May 1999. Top of page Diarrhoeal illness There were no reports of diarrhoea prior to boarding ship. Four further cases with diarrhoeal symptoms occurred on 14 May at Port 3, outside Australian waters. Passengers who ate onshore at non-Australian ports or during the onshore tour were more than three times more likely to report a subsequent diarrhoeal illness than passengers who went onshore at one or more ports but who did not eat at any of them. This includes passengers who ate during an onshore tour from Port 3 on day 7.