After two cases of the deadly Middle East Respiratory Syndrome were confirmed in the US, one in Florida, the other in Indiana, and two others, both healthcare workers, are being monitored closely after showing flu-like symptoms, as well as at least 18 other healthcare workers who came in contact with a MERS patient being asked to stay home and not report to work for 14 days, now22 airports in the US are on high alert with signs to be posted warning travelers of the dangers. MORE