Last week, one of our goats started showing signs of worms (sluggish, heavy eyes, pale gums, diarrhea). He was roughly 6 weeks old & still nursing. We wormed him immediately but unfortunately he passed. The next day we wormed all of our goats just to be safe. We use safeguard for goats. Today one that wasn’t even showing signs of worms was found dead.... She had normal poop, she was lively, she was eating. My father in law did an autopsy and she was full of worms also. Any ideas or suggestions. Is this wormer ineffective or should we be doing multiple doses? We are new to goats.