29 states where COVID-19 is spreading fastest, slowest: Jan. 15

Gabrielle Masson - Print  | 

Washington has the highest COVID-19 reproduction rate, while West Virginia has the lowest, according to rt.live. 

Rt.live is a website that calculates the rate at which the virus is spreading. 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.

The model attempts to correct for increases in testing volume, which can influence positivity rates. The site shows both new cases and what the model believes actual cases would have been when corrected for testing volume. The latter figure, known as test-adjusted positives, is used to calculate the Rt number for each state. Rt.live also said test-adjusted positives could be an understatement of true infections, since testing volumes may reflect a disproportionate amount of people who don't have symptoms and are taking the test as a precaution. For more on methodology, click here

Editor's note: This list contains ties and is based on data last updated Jan. 15.

16 states with fastest spread of COVID-19

1. Washington — 1.19

2. Wyoming — 1.11

3. Hawaii — 1.09

    Kentucky — 1.09

4. District of Columbia — 1.08

    Georgia — 1.08

    Vermont — 1.08

5. Arizona — 1.07

    New Jersey — 1.07

6. Virginia — 1.06

    Wisconsin — 1.06

7. Arkansas — 1.05

   Louisiana — 1.05

   Mississippi — 1.05

   Oklahoma — 1.05

   South Carolina — 1.05

13 states with slowest spread of COVID-19

1. West Virginia — 0.90

2. North Dakota — 0.91

3. Montana — 0.93

4. Indiana — 0.94

    Michigan — 0.94

    New Hampshire — 0.94

    South Dakota — 0.94

    Tennessee — 0.94

5. Idaho — 0.95

    Illinois — 0.95

6. Alabama — 0.96

    Pennsylvania — 0.96

    Rhode Island — 0.96

More articles on public health:
13 states reporting UK coronavirus variant cases: What to know 
4 former CDC directors on the vaccine rollout, variants and more: 7 insights
States ranked by percentage of COVID-19 vaccines administered

ior's note: This list contains ties. These rates were captured July 7; the most recent update made to the Rt.live site was July 6.
 

© Copyright ASC COMMUNICATIONS 2021. Interested in LINKING to or REPRINTING this content? View our policies by clicking here.