What I cannot figure out about this post is WHO INFORMED YOU THAT YOU HAD PARAMYXOVIRUS IN YOUR LOFT ?.in fact has any body on Pigeon Basics had this virus and who informed you ?. Was it your vet or the guy down the street or you have read about the symptoms elsewhere and surmised your birds were infected... The reason I am asking is DEFRA would have been involved and sent their vets, samples would have been taken which takes 7 days to analyse and they would have officially informed you but I haven't read anywhere that this procedure has been carried out.