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A health worker walks past a pile of burning bags and chicken feathers at Navapur, in the western Indian state of Maharashtra, Thursday, Feb. 23, 2006. Tests on people in western India suspected of having bird flu show no sign of the deadly H5N1 infection, an Indian official said Thursday, while authorities began setting up strict checkpoints around the town at the center of the country's first bird flu outbreak. (AP Photo/Rajesh Kumar Singh)