Columbiana County - May 5, 2021

Effective Reproduction Number (Rt)

Since mid-April, estimated Rt has remained below 1.0.


Projected Incidence

Case numbers are expected to increase slightly in the coming 2 weeks, although considerable uncertainty exists given the small population size of the county.  Continued masking and social distancing will be critical to preventing increases.


Asymptomatic to Symptomatic Ratio

The ratio of asymptomatic to symptomatic cases slightly elevated at a level just above 0.5.  A low ratio of asymptomatic to symptomatic cases facilitates mitigation efforts since symptomatic individuals usually isolate.