Hi

One of my kittens had just recovered from cat flu symptoms (apparently brought on by vaccination) when I got her. She was still sneezing ocassionally and her general condition was not great. I read on this forum somewhere that L-Lysine can be given to cats as an immune system booster and so bought this on line at Natures Best but think you can also get it at Holland & Barrett. I gave half of each 500mg tablet ground up on her food morning and evening for about a month and am sure this helped her.

Hope all goes well with your new kitties