I hope she recovers. Like you said, when it rains it pours!
Thinking about mutts vs purebred goats. The one I could NEVER get rid of all the worms and stayed anemic was full Alpine, but she appeared healthy otherwise. Her kid was Alpine/Nubian, but just one generation down. He has issues with lungworms sometimes. Otherwise he's pretty strong and HUGE though his color seems like he's a bit mineral deficient (and I do give loose minerals).
The doeling that went down fast from barberpole and almost died was pure Nubian. She's still tiny and her hooves tend to overgrow and she's just not a good doer. Probably the least healthy of my remaining goats.
The doeling that almost died of infection as a tiny bottle baby was a real mutt mix. But otherwise she's been quite strong and healthy. Her doeling this year is incredibly strong and healthy so far, after a few rough first days. People can't believe she's so young -- almost as big as my yearling Nubian doe and full of energy and attitude. She's the most genetically varied goat too.
On the other hand, my Nubian buck, and a Nubian doe I had last year have had zero issues. I wormed them during barberpole season last year (they did have them) but never have done anything else for them.
Too small a sample anyways. But since they are just for me, maybe I won't worry about re-establishing more purebreds. I'm liking my little all-mixed-up doeling so far (though she is over 50% Nubian).
Interesting to think about though.