Absolutely revolting. From CBS:

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.