The first time I had a foster animal produce roundworms was rather a shock. I had thought the little stray cat was a pregnant female. I caught 'her' and found she was a he. He went to the vet for a basic exam. That night he vomited up a mass of worms. Big freaking huge ugly bloody disgusting worms. I was so horrified that I took him to the emergency vet because there was no way anything that freaky looking could be right. They were calm and gave me dewormer.

Still, they are just horrific. Disgusting.

I'm glad your little ones are free of them now.