From the Document: "Quickly sharing information about a disease outbreak can help stop the spread of disease, and prevent and reduce illness and even death. People often remember the first information they hear in an emergency, so the first information they receive should come from health experts.  Even if the cause of the outbreak or specific disease is unknown, share facts that are available. This can help you stay ahead of possible rumors.  Share information about the signs and symptoms of disease, who is at risk, treatment and care options, and when to seek medical care."
U.S. Centers for Disease Control and Prevention: http://www.cdc.gov/