So, I've never had this before in any version.. I'm in a Haunted Mountain biome with a Mirthful Rocky Wasteland on the other side, for reference.
The fortress is going quite swell, except any animals/creatures/migrants that appear from this 'Haunted' biome appear either with all-red wounds listed as 'blisters', or in the case of immigrants, every single body-part is "swollen with Urist's blood" [a sign of bad infection, right?] and they die almost immediately. They also spawn as Hungry, Thirsty, Drowsy, Paralyzed [the main killer], and Pale. Like I said, I've never had this before and I've spent almost all my my recent fortress time in bad biomes.
Is this new? Because if so, Dwarves need to be made immune to environmental damage until they actually appear on the map so they're not just immediately crippled and die without moving, since it makes getting new immigrants rather difficult.
And every group of migrants appears from the haunted Biome. Unfortunately, none have attempted the Mirthful border. Stupid sods. :|
Could include the save if you'd like, I'm probably just going to abandon this fort anyways since it's unplayable since anything that appears on half of my map is half dead/paralyzed, including other Civilization entities..