In South Florida, the day-to-day positivity rates fluctuate greatly, although the general trend has been upward. In Broward County, the rate Wednesday was 6.5%, down from 11% the previous day, but up from earlier in the week. In Miami-Dade County, the rate was 10.1%, down from 19.5% the previous day, but also up from earlier in the week. Palm Beach County had a rate of 8.8%, down from 18.2% the previous day.