If you read the comments posted after the article, it sounds like some of the neighbors blame sanderson. I found this post particularly interesting:
Posted by: keith Location: hammond on Mar 22, 2009 at 07:09 AM
They built the new houses that got the illness on a spot were chickens were buried fromt he same illness a few years ago,they didnt have chickens from somewere else on there place they tried to get rid of there sick birds to the neighbors which broke there contract how do i know this well i was one that received birds from this grower my chickens checked out negative i have free range birds in a coupe 2 days later after he put them in my coupe my chickens started dying i have had these for over 3years with no problem or illness sanderson is trying to blaim the land owners around that have poultry for farm use although they are the ones that got it and spread it around it was on there feed trucks when they left the infected houses they now dissinfect everthing even school buses going down the road by them,TDAH came and destroyed my birds i had 9 egg layers and 2 Genees what a shame,the grower will probally losse his contract of this from what the investigators told me
If they did have diseased birds buried on a spot where they dug to put in new buildings, that is very poor biosecurity. The picture of the birds show them on a dirt floor so they may have been exposed that way. I would be pretty PO'd if sombody did something like this, got my birds slaughtered and then tried to blame me. I would be interested in knowing all of the details.