SAN RAFAEL — New cases of measles in two unvaccinated Marin County children have been confirmed by the county's health department.

The Oakland Tribune reports (http://bayareane.ws/1uIZsvv ) that Marin County Public Health Officer Dr. Matthew Willis says the children, who are related, will remain isolated for the next three weeks.

Their names and ages were not released. The infection occurred outside the county.

Before the new cases were confirmed Thursday, the California Department of Public Health had reported 79 measles cases.

California has for weeks been gripped by a measles outbreak, with most of the cases traced directly or indirectly to Disneyland in Southern California.

Parents who think their child may have measles should call their doctor immediately rather than going to a clinic or hospital.

Northern California's Marin County has a high rate of people claiming personal belief exemptions for vaccines.

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Information from: The Oakland Tribune, http://www.oaklandtribune.com

Top 10 California counties for gun sales (2001-2015)

1. Shasta County

Average gun sales per 100,000 people: 6,460

Long guns: 3,831

Handguns: 2,629

Long guns by percent: 59%

Population: 178,592

2. Colusa County

Average gun sales per 100,000 people: 5,919

Long guns: 4,684

Handguns: 1,235

Long guns by percent: 79%

Population: 21,948

3. Lassen County

Average gun sales per 100,000 people: 3,763

Long guns: 2,257

Handguns: 1,506

Long guns by percent: 60%

Population: 30,780

4. Humboldt County

Average gun sales per 100,000 people: 3,750

Long guns: 2,383

Handguns: 1,367

Long guns by percent: 64%

Population: 135,116

5. Placer County

Average gun sales per 100,000 people: 3,693

Long guns: 2,125

Handguns: 1,568

Long guns by percent: 58%

Population: 373,796

6. Butte County

Average gun sales per 100,000 people: 3,453

Long guns: 2,083

Handguns: 1,370

Long guns by percent: 60%

Population: 222,090

7. Mendocino County

Average gun sales per 100,000 people: 3,382

Long guns: 1,957

Handguns: 1,425

Long guns by percent: 58%

Population: 88,378

8. Tuolumne County

Average gun sales per 100,000 people: 3,241

Long guns: 1,990

Handguns: 1,251

Long guns by percent: 61%

Population: 54,900

9. Inyo County

Average gun sales per 100,000 people: 3,205

Long guns: 2,118

Handguns: 1,091

Long guns by percent: 66%

Population: 18,650

10. Sacramento County

Average gun sales per 100,000 people: 3,196

Long guns: 1,070

Handguns: 2,126

Long guns by percent: 33%

Population: 1,495,297

Source: California Department of Justice

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On the North Coast

Napa County

Average gun sales per 100,000 people: 1,894

Long guns: 1,132

Handguns: 762

Long guns by percent: 60%

Population: 142,028

Lake County

Average gun sales per 100,000 people: 1,696

Long guns: 902

Handguns: 793

Long guns by percent: 53%

Population: 64,306

Sonoma County

Average gun sales per 100,000 people: 1,551

Long guns: 942

Handguns: 609

Long guns by percent: 61%

Population: 501,959

Source: California Department of Justice