You mean the FELV VACCINE? Yes, perfectly normal. The vaccine has a high incidence of bad reactions, including causing TERMINAL CANCER in as many as 1 out of every 1000 cats it is given to. What was the brand and specific name of the FELV vaccine your cats were given? Some brands have different side effects than others, so I would have to know the information off the label to be of more help. Personally, I never recommend the FELV vaccine to healthy adult cats that have already been exposed and test negative, as it's completely pointless, as they have proven to be naturally immune already. But then, that's water under the bridge at this point. Just keep an eye on ALL of the cats, and run your hand over their back leg where the vaccine was given every day, to be sure it's not turning into a cancerous tumor, if you feel a hard knot or bump, and it doesn't go away in a week, then you need to discuss the possibility of Vaccine Site Sarcoma with your vet, and amputate the leg before it spreads to an area that's not operable. As for just being kinda "out of it" just watch the cats that act that way, be sure they are eating and drinking and using the litterbox, and if they are not better in a few days, then take them back to the vet for a check-up. You should report the cats that have reactions to the vaccine, there are several places to do this, listed below (you may have to get all the info from your vet or have him fill out the forms): https://web01.aphis.usda.gov/CVB/adverseeventreport.nsf/Adverse%20Event%20Report%20Form?OpenForm http://www.vas-awareness.org/ReportReaction.htm (you need to know your vaccine's manufacturer to report it directly to them)
Here is my webpage with all the pertinent information needed to make wise and educated decisions about vaccines: http://ucat.us/vaccines.html Phaewryn http://ucat.us/domesticcatlinks.html Special Needs Cat Resources
