Some residents in Sydney still must boil water

SYDNEY, Australia Many of Sydney's 3.7 million residents mustboil their drinking water for another week before dangerous parasitesare flushed out of the water system, health officials said Saturday.

The outbreak of the parasites giardia and cryptosporidium, foundthroughout the system Wednesday and Thursday, has been a majorembarrassment for the city that will host the Summer Olympics in twoyears.

Bottled water has become a hot commodity, but despite the highdemand, there have been no reports of price gouging by …