https://imgur.com/a/46R0Cgc

This is part of the base in a water world. Because I didn't read the update notes (v1.0.0), I was puzzled about the death wave each month for a few days straight. But now that I know more healthcare buildings should be built, I have built 93 small medical clinics in total, but the health is still at 0%. Is this still not enough? How many percentages of colonists should be at clinics? Thanks.

There are now ~600 colonists in total and each month 200 die.