Marin Grandmas Quarantined for T-Giving

Just in time for Thanksgiving -- grandma is an off-limits public health hazard.

Marin County's largest nursing home, the Country Villa Novato Healthcare Center in Novato, is quarantined due to an outbreak of norovirus, according to the Marin Independent Journal.

Eighty people at the 181-bed nursing home have fallen ill since the outbreak began on Nov. 6, according to the newspaper. Residents at the facility have been told to keep to their rooms, and all visiting is suspended.

Norovirus is generally not deadly: the bug causes nausea, vomiting, diarrhea, and stomach cramps, and most infected heal within a few days without hospitalization. The very young and the elderly are at rist because of dehydration, the newspaper said.

It's still unclear how the outbreak began at the nursing home, according to the newspaper.