Coronavirus cases in Idaho’s K-12 system continued to drop last week.

The Idaho Department of Health and Welfare Monday reported at least 101 cases for a nine-day period running from Jan. 16 through Sunday.

By contrast, Health and Welfare reported a minimum of 124 cases for an abbreviated five-day period running from Jan. 11 through Jan. 15.

The reporting schedules changed due to the Jan. 18 holiday honoring Martin Luther King Jr.

The week’s hotspots:

• Vera C. O’Leary Middle School, Twin Falls: At least four cases.
• Ernest Hemingway STEAM School, Ketchum: Four cases.
• Lake City High School, Coeur d’Alene: Four cases.
• Rendezvous Upper Elementary School, Driggs: Four cases.
• Bishop Kelly High School, Boise: Three cases.
• Payette Lakes Middle School, McCall: Three cases.

Through Sunday, Health and Welfare has linked at least 5,561 coronavirus cases to K-12 students and teachers, up from 5,447 on Jan. 15.

The weekly reports are a snapshot, and they’re incomplete.

Not every school reports its case numbers weekly; the 101 cases reflect reports received by Health and Welfare by Sunday. Health and Welfare does not release any case numbers from schools with fewer than 50 students, citing privacy concerns. In some cases, Health and Welfare has only a minimum number of coronavirus cases for a school.

For the 2020-21 school year, the state’s highest case numbers are all tied to high schools.

• Lake City High School: 131 cases.
• Coeur d’Alene High School: 91 cases.
• Mountain View High School, Meridian: 88 cases.
• Eagle High School: At least 82 cases.
• Rocky Mountain High School, Meridian: 79 cases.
• Thunder Ridge High School, Idaho Falls: at least 78 cases.
• Meridian High School: 78 cases.
• Lewiston High School: 72 cases.
• Bonneville High School, Idaho Falls: at least 69 cases.
• Hillcrest High School, Ammon: at least 69 cases.

Through Sunday, the state and its health districts have reported 159,583 confirmed or probable coronavirus cases.