Frisco ISD is asking students and employees traveling over spring break to countries with severe outbreaks of coronavirus to self-quarantine for 14 days upon return.

This comes after FISD Superintendent Mike Waldrip sent a March 9 notice to parents regarding coronavirus precautions.

Existing research on the coronavirus suggests the incubation period may range between two to 14 days, according to the Centers for Disease Control and Prevention.

FISD is limiting its self-quarantine request to those who have traveled to areas with Level 2 and 3 travel health notices. Those countries currently include China, Iran, South Korea, Italy and Japan, per the CDC.

“The district will work with each family impacted during this extended absence period to resolve any attendance issues due to the self-quarantine from travel,” Waldrip said in the notice.

FISD uses hospital-grade products to disinfect school buildings daily and sanitizes all buses regularly, district staff said in an emailed statement.

"A special team is also utilized throughout the district in times of heightened health concerns to further prevent the spread of communicable diseases," the district statement says.

Mark Piland, Frisco fire chief and emergency management coordinator, said the city has been working closely with FISD, and the district being closed for spring break this week has not diminished that level of contact.

We’re in close contact with FISD every day,” Piland said. “Our emergency management staff is also in contact with their emergency manager, who [is] on their conference calls as well.”

Editor’s note: Community Impact Newspaper does not report on presumptive cases, only confirmed positive results.