The February 10 survey reveals 895 outbreaks under active investigation and 2,806 considered resolved, for a total of 3,701 over the course of the pandemic. That's an increase of 124 in the week since our February 3 update, which totaled 3,577 outbreaks (924 active, 2,653 resolved).
This bump came despite a continuing decline in the number of nursing homes and assisted living centers experiencing outbreaks. The health-care category led these lists for months, but on February 3, it fell behind outbreaks at K-12 schools — an indication that vaccinations of residents and staffers at such facilities, who began receiving inoculations in December, are having a positive effect. On February 10, fifteen health-care operations joined the outbreaks roster, up from eleven on February 3 — but only ten are identified as specializing in senior services, and half of those outbreaks actually date back weeks, likely due to a lag in communication between local and state public-health agencies.