In its latest update, the CDC said the second health care worker wasn’t tested for influenza because the illness had resolved before the investigation began. The second health care worker will be offered the same blood test to determine if that person has antibodies for the bird flu virus.

Three people in contact with a hospitalized bird flu patient in Missouri have developed symptoms, officials said.

Health officials identified three contacts, including two healthcare workers, who were closely monitored after a bird flu patient in Missouri was recently hospitalized.