I noticed one of my three chickens had worms about two months ago. I researched and am sure it was tapeworm and treated all three with albazene wormer which treats tapeworm. Two days after first treatment I saw a passed long skinny white worm, sorry gross. I treated again ten days later. It has been 4weeks since second treatment and have seen no signs of worms until today! The same tiny white rice like worm in one of their poops this morning! I'm so confused. They also have been sneezing a bit I don't know if this would have anything to do with it but show no other symptoms of being sick. They lay great eat great run around and seem to be happy chickens.