Mercer County - April 28, 2021

Effective Reproduction Number (Rt)

Rt peaked above 1.0 in mid-April. Whether the recent decline in Rt will continue will remain to be seen.

Projected Incidence

Daily incidence is expected to fall gradually in the coming two weeks.  Continued masking and social distancing will be critical to preventing increases.

Asymptomatic to Symptomatic Ratio

The ratio of asymptomatic to symptomatic cases sharply increased from early to mid-April. Whether a recent decline in this ratio will continue will remain to be seen.  A low ratio facilitates mitigation efforts since symptomatic individuals usually isolate.