Bite your fingernails, or stick you fingers, hands on/in you mouth a lot? Stop or be aware of what you’ve been touching since the last cleaning.
That’s not at all practical, though. Changing a habit such as biting fingernails is extremely difficult, and definitely not worth it to reduce the risk of getting a virus.
I was pretty surprised to see “definitely” here. If it significantly reduced your risk of getting a serious respiratory infection I’d expect it to be worth the effort.
I was pretty surprised to see “definitely” here. If it significantly reduced your risk of getting a serious respiratory infection I’d expect it to be worth the effort.