Two previous cases, in Singapore and Taiwan, were linked to medical research accidents.
Neighbors in Luo's apartment building at Riverview Gardens, a leafy 10,000-unit haven in a middle-class Guangzhou suburb, seemed unconcerned at his return.
"You read the papers and people say `wah, SARS,' but I say it's just another kind of flu," said Chen Qiuyou, a front desk guard. "So we don't know where it came from. What's the big deal?"
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