The post holiday gathering spike is rather obvious. Not just for COVID but for everything. We really should have test kits, and people should test BEFORE travel. A national level policy of full refunds if tested positive (for any illness / disease) could help prevent the needless spread of illness.
Diseases are inevitable. It's not all that useful to be testing for every random disease that comes up. Testing doesn't help. Lockdowns don't help. Even mRNA treatments don't help. You WILL get Covid. You WILL get the flu. And your immune system will get stronger as you get exposed. Covid used to be novel. Now it's endemic and mutates multiple times per year. It's looking more and more like Covid will be with us for…
In the world of security, you grow up, leave behind the simple binary descriptions, and assess impact of event and threat you're defending against.
This applies to disease safety as well. It's not just 'inevitable' or 'preventable', but there is a difference between getting sick once a year and getting sick every month. Between working in a hospital and working from home. Between being sick by yourself and spreading it to your extended family.
There is a risk assessment to be done, and calculated measures to be taken.