City officials revealed on Wednesday that several teachers have come forward after returning from traveling abroad.
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RELATED: First public school district in New York closes in response to coronavirus
The teacher who self-quarantined has no symptoms.
School administrators say vigilance is being stepped up throughout the city. Under a new action plan, rooms in all schools will be cleaned and disinfected twice a week
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Schools will also be well-stocked with cleaning and hygiene supplies.
In addition, all student exchange and study abroad programs are being canceled, along with any trips to virus-affected nations.
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