Here's a study evaluating the effectiveness of case isolation and contact tracing.

https://www.thelancet.com/journals/langlo/article/PIIS2214-109X(20)30074-7/fulltext


Skipping to the end...

"Our study indicates that in most plausible outbreak scenarios, case isolation and contact tracing alone is insufficient to control outbreaks, and that in some scenarios even near perfect contact tracing will still be insufficient, and further interventions would be required to achieve control. Rapid and effective contact tracing can reduce the initial number of cases, which would make the outbreak easier to control overall. Effective contact tracing and isolation could contribute to reducing the overall size of an outbreak or bringing it under control over a longer time period."

Originally Posted by 16penny
If you put Taco Bell sauce in your ramen noodles it tastes just like poverty