Infectious Diseases: Imported Hepatitis

The brightly colored plastic balls, about the size of a walnut and filled with water, seem just the thing for summer on the patio. Taken from the freezer and dropped into a drink, they don't melt and dilute the gin and tonic the way old-fashioned ice cubes do. And if Mother has bought pink ones shaped like elephants, the kiddies tend to clamor for them in softer drinks. But the freeze balls, made in Hong Kong and filled with water there, are apt to leak. When they do, the medical effects can be more chilling than the customer bargained...