China's milk scandal fanned fears across Asia on Tuesday as countries expanded bans on Chinese dairy products to include candy and other goods and worried parents rushed their children to hospitals for health checkups. From Japan to Thailand, reports spread of cookies, ice cream and even meat buns that might have been contaminated with tainted milk products blamed for least four infant deaths in China. Another 53,000 others have fallen ill. The widening health scare led many schools and stores to pull more products out of precaution. Even major international food makers such as Kraft Foods Inc., were hit by unconfirmed rumors of recalls of numerous snacks, including Oreo cookies and M&Ms. "I'm still worried about my child," said Mary Yu, a Hong Kong mother who took her 3-year-old son for hospital tests Tuesday, along with dozens of other parents in the territory. "I want to have a thorough check to play it safe." The crisis was initially thought to have been contained to Chinese milk powder laced with melamine, an industrial chemical used to make plastics and fertilizer that can cause kidney stones and lead to kidney failure. But recent testing found melamine in samples of liquid milk taken from 22 Chinese companies