A ten point severity, occurrence and detection scale with a list of criterion to reflect the COVID-19 pandemic in the United Kingdom. Updated on 31 October 2020.
|Severity||Insignificant||Very minor||Minor||Low||Moderate||Moderately high||High||Very high||Extremely high||Critical|
|Criteria S: Case fatality rate||≈0%||<0.1%||0.1–0.3%||0.3–0.5%||0.5–1.0%||1.0–1.5%||1.5–2.0%||2.0–2.5%||2.5–3.0%||>3%|
|Rate of Occurrence||Very remote||Remote||Very low||Low||Moderately low||Moderate||Moderately high||High||Very high||Extremely high|
|Criteria O: Expected number of individuals infected from a single infectious person (using posterior median of the reproduction number)||≈0||<0.1||0.1–0.2||0.2–0.4||0.4–0.7||0.7–1.0||1.0–1.3||1.3–1.6||1.6–2.0||>2|
|Likelihood of Detection/Prevention||Failure prevented||Failure likely to be prevented||Control measures are working||Low levels of detection/prevention||Not likely to detect||No detection opportunity|
|Criteria D: Control measures (affecting the whole population) and rate of detection/prevention)||Vaccine is produced with 90%+ success rate||Nationwide lockdown applied in full force||Nationwide lockdown gradually applied||Self-isolation and “stay at home” practices||Practice social distancing||Sanitization of cities and towns||Mandatory face coverings||Regular hand washing not practiced regularly||Prevention measures||None|