Four more health workers show symptoms after contact with Missouri bird flu patient Four additional healthcare workers in Missouri who were in contact with a bird flu patient developed mild respiratory symptoms but the virus was not confirmed in any of them, U.S. health officials said on Friday. Reuters Reuters

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So far, six healthcare workers who came in contact with the Missouri patient have developed symptoms. Only one of them was tested negative for the virus via a PCR test, while the blood samples of the others have been sent for antibody testing, the Centers for Disease Control and Prevention said.

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