Is 14 days enought? about documents HOT 3 CLOSED

https://rega.kuleuven.be/if/tracing-tools-for-pandemics (from KUL) mention at least one month of lookback time.

from documents.

There is a point of diminishing returns.

You are more contagious the closer you are to having symptoms. It is also much more likely that you were infected 2-7 days ago than 7-14 days ago.

I think this is a decision that has to be made by health authorities as it is a trade off between number of quarantined people and missed infections.

from documents.

Hi @gscokart and @timoll, thank you for your inputs. 14 days is the reference duration used throughout the paper for consistency. We are actively discussing with epidemiologists and expert to fine-tune it further. We would update the whitepaper if this changes.
Thanks again and I hope this helps clarify the issue.

from documents.