Politics Before Science
There was a time when scientists would err on the side of caution and make decisions based on the best outcome for the most people. In the case of how long to isolate or quarantine after a positive test for COVD-19, the CDC has caved-in to politics and shortened the isolation period to five days.
If you look at the science and try to examine all of the available information it is clear that five days is not enough to provide safety to people you come in contact with. The CDC does suggest that after five days of isolation an infected person get re-tested and then wear a mask for another five days. That is almost a concession to the fact that there is a high likelihood they can transmit the virus beyond five days.



