Hi
That's very sad. Young kittens can fall victim to any of the viral cat diseases very quickly. Feline enteritis might have been the cause. Occasionally cat flu viruses can also be very virulent and fatal even before respiratory signs develop. If the kittens were already quite weak and became cold this would not have helped them fight off infections. You did your best but I think the odds were stacked against them.
Cathy Wickenden BVet Med MRCVS
Barton Lodge Veterinary Centre
1 Midland Road, Hemel Hempstead, Hertfordshire, HP2 5BH
Tel: 01442 216048 24 hours
[
www.bartonlodgevets.co.uk]