Hippies are gross.

SAN FRANCISCO (CBS SF) — Poor sanitation and evidence of lice and fleas at the Occupy San Francisco encampment endanger the health of everyone in the overcrowded, makeshift tent city at Justin Herman Plaza, public health officials said Wednesday.

“Everybody that’s been down there knows it has to change,” said Dr. Tomas Aragon, a public health officer who has been conducting inspections twice a day at the Occupy SF protest.

Aragon said the lack of sanitation and food safety, combined with the large quantities of debris in very tight quarters, made the Occupy encampment a tinder box for gastrointestinal and respiratory infections.

“Whenever you bring a group of people together, they’re going to bring whatever they have on them,” he said. “Although we have not detected an outbreak, we did identify one person, for example, that had lice.”