Saving Bayc

My girlfriend and I, we rescued a small black cat with 5 kittens, that were left on the steet, we are giving them in adoption and there are only 2 left, the morning of October 26th the smallest started acting weird, he was laying on the floor, having trouble to breath and didn't have the strength to walk or move, we took him to the vet and they told us he was in a comatose state we that it was very delicate and he needed special attention, we hospitalized for 24 hours and he needs about 8 different exams, he's about 3 moths old and his struggling for his life, help us save him and give him a better life!