Definitely get them to the vet as soon as you can! I don't know much about kittens, but I do
know that worms are very treatable with the proper meds. Over the counter stuff is usually not strong enough to fix the problem, and some worms require specific medicine. So taking the new little one in to the vet for a definite diagnosis is the way to go!
The vet may also recommend that Jangkins be treated, too.
The bloody stool may just be from worms, but there may be other causes to look into as well.
Is Cypora eating and drinking normally?
If you want to get more advice, you might want to start a thread in the Cat Health Forum with a descriptive title. More members will see it there--especially members who have experience with cats.
Good luck with your kitties!
Don't be afraid to take your little newbie to the vet--the sooner she gets proper meds, the easier it'll be on all of you!
And welcome to the board.