Measured by the average number of people who become sick from an infectious person, the site tracks the effective reproduction rate (Rt) of COVID-19 infections. If the value is less than one, the spread of the disease is slowing. The higher the Rt number, the worse the spread.
Editor’s note: This list contains ties.
Eight states with fastest spread of COVID-19
1. Arizona — 1.18
2. Alaska — 1.14
3. Montana — 1.12
4. Arkansas — 1.09
Mississippi — 1.09
5. Oklahoma — 1.06
South Carolina — 1.06
6. Washington — 1.05
Eight states with slowest spread of COVID-19
1. New Jersey — 0.79
2. New York — 0.80
3. Delaware — 0.82
4. Connecticut — 0.83
Michigan — 0.83
5. Minnesota — 0.84
6. Hawaii — 0.85
7. Illinois — 0.86
More articles on public health:
4 regions driving jump in positive COVID-19 tests, CDC says
Cuomo threatens to lock down NYC again; race may be key indicator of COVID-19 mortality — 5 updates
When will ‘normal life’ return? 511 epidemiologist weigh in
