1, the health code yellow means that you can't travel, and you need to be quarantined for 7 days. You must continue to type into the quarantine area to turn into a green code normally. A green code means that you are a healthy code.
2. There are three kinds of "healthy pass codes": the green code can pass directly, the red code needs to be isolated for 14 days, and the yellow code needs to be isolated within 7 days.