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(CNN) – The Centers for Disease Control and Prevention has confirmed that MERS is a low risk for Americans, but it is concerned enough to post warnings in airports.
"We think it's really critical to avoid overreacting in the community, but also avoid under reacting in the health care environment," says Dr. Anne Schuchat, Director for the National Center for Immunization and Respiratory Diseases.
"The reason for the signage is so that we can promptly identify potential cases so they can be separated from other people. What we saw in the SARS virus is somewhat like this, and what we see in certain episodes in the Arabian Peninsula is outbreaks in the hospital environment. Those outbreaks can get larger and larger if you don't know who is infected and who isn't," says Schuchat.
For more from the CDC's Dr. Anne Schuchat, check out the video above.