Just be careful introducing this cat tree to any very small kittens because the height can be a danger or a risk for them should they fall from the top. (ehomeremedies.com)
Cat flu can be fatal in small kittens so prompt veterinary attention is vital. (thearkvet.com)
This is usually the best method with small kittens because they are too weak to suck on a bottle with a nipple. (tulsapetsmagazine.com)