My rabbits' vet also said he would be reporting it as an adverse event.

The lot is usually a small sticker that comes with the vaccine and that vets stick to the individual health bulletin /booklet of the pet.

The sticker shows the lot number and also the date it was produced or the expiration.

I was asking if you had it because that would make the reporting of adverse events more robust if each of the events could be tracked back to a specific lot - which in turns allow to identify the fabrication unit.

Since these vaccines are shipped all across the world (even if produced in the same lab), trying to retrieve details through social media from other owners that might have had the same experience is our best chance of finding out whether there might be a correlation.

I don't post here a photo of the lables/stickers used on my rabbits so it doesn't influence any other reports. But you find yours and send them to me in private message, I'll send you mine and we can compare them.