Hi All, Thanks for the replies. This was a roast in the bag chicken, so it was very difficult to tell if it was OK or not prior to cooking, however it was in date, not a particularly hot day and the symptoms appeared pretty much as described above. I am very thankfully my 18 month old didn't want any of it, and he was thankfully ok! Hygiene was meticulous as always, especially that we have a little toddler running around. Needless to say, we wont be eating chicken again for a long time!