Four hospitals have been shut down completely or partially closed in an effort to stop the spread of what the World Health Organization (WHO) has said was a "large and complex" outbreak.
The WHO last week recommended schools be reopened, saying schools have not been linked to transmission of the MERS virus in South Korea or elsewhere.
At least 440 schools remained closed on Monday, compared with the 2,900 that were shut on Friday.
South Korean President Park Geun-hye, whose approval rating has been battered over the government's response to MERS, urged the country on Monday to return to normal.
"I ask the business community, too, to continue to go on with investment, production and management activities as normal and particularly help with ensuring that consumers don't hold back from spending money," she told a meeting of senior aides.
Park, who last week postponed a scheduled visit to the United States, has been criticized for refusing in the early days of the outbreak to release the name of the hospital where infected and suspected patients had stayed, fuelling public fear and confusion.
On Saturday, the WHO cited shortcomings in South Korea's early response to MERS and urged better communication by the government to improve confidence and trust in its effort to fight the outbreak, domestically and internationally.
The Health Ministry said it was moving to quarantine more than 5,500 people who may have been exposed to the MERS virus at a prominent Seoul hospital, which has suspended most services after becoming a new epicenter of the outbreak. The number will take the total in quarantine to about 10,000.
Samsung Medical Center said on Sunday it was suspending all non-emergency surgery and would take no new patients after more than 70 cases were traced to it, including an infected worker who was found to have been in contact with more than 200 people.
Reuters
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