Four Bexar County residents are being monitored by local health officials because they were on a flight with one of the people who has been diagnosed with Middle Eastern Respiratory Syndrome, or MERS, in the United States, 1200 WOAI news has learned.


  "None of the four are sick in any way," Metro Health Director Dr. Thomas Schlenker told 1200 WOAI news.  "The incubation period of this particular virus is five days or more."


  He said the four, who he didn't identify, were on a connecting flight with one of the two people who have been diagnosed with MERS after taking flights from Saudi Arabia to the United States, and have been treated in U.S. Hospitals.  He says none of the four was actually in Saudi Arabia.


  "They're not quarantined because they are not sick," Schlenker said.  "If any of them were to become sick, with fever or trouble breathing, then they would be quarantined."


  Dr. Schlenker stressed that none of the four poses a danger to the health of people they encounter because there is no signs that they have the disease, which was first reported in Saudi Arabia in 2012 and has killed more than 100 people in that country.


  He says the four local individuals are not being prohibited from doing anything, and they are allowed to enter hospitals or nursing homes if they choose.  But he said that could change if any of them begin to show symptoms of the disease.


  "Since none of them are sick at this point at any way, they are just going about their business as usual," he said.


  Schlenker says Metro Health has also requested a blood sample from the four so their health can be monitored.  He said when the incubation period passes, the monitoring will end.