Local health authorities remain on alert after a fourth case of the Middle East Respiratory Syndrome has been confirmed in the country, just six days after Korea reported its first-ever case of the rare viral disease.
The Korea Centers for Disease Control and Prevention said Tuesday the new patient, who is a daughter of the third patient, is believed to have contracted the virus from the first patient, after staying at the same hospital.
Officials say the situation is under control as the fourth patient is one of the people who had been quarantined in an isolation ward.
They added that they will closely monitor the situation, especially during the first two weeks, as the incubation period of the disease is up to 14 days.
The MERS virus, which has a fatality rate of around 40 percent, is relatively new to humans, with only some 11-hundred cases reported since the first case was confirmed in Saudi Arabia in 2012.