Feline lukemia?

this is actually a follow up on a statement i made monday. i had taken my cat to the vet and found out she had feline lukemia. she ped away yesterday after 3 days. i have cried buckets and feel so guilty. just a reminder to every one to get your cat/cats vaccinated against this deadly disease. the loving look in her eyes as she stared at me even dying ripped my heart to shreds. i let her down but maybe by posting this i can spare some other family my heartache. yhanks to everyone who took time to answer me and pray for jd. thank you.