According to our paper in this issue, carbon monoxide (CO) poisoning is infrequently reported in Northern India. They are very fortunate. Perhaps, their buildings are better ventilated than ours. CO poisoning is common in Britain, and has killed many young people camping in tents, canal boats and caravans, and those using charcoal burners to cook in their shelter who do not extinguish the burner properly before settling in for the night. Faulty but fashionable wood burning stoves are causing poisoning and deaths in some of our modern homes, and CO poisoning is also a frequent cause of death in fires. Excluding the cases where CO poisoning was used as a method of suicide, with a hose from a vehicle exhaust into the vehicle, it is a common enough occurrence in Britain for several ‘no win no fee’ personal injury solicitors to advertise publicly for cases in order to benefit from them. Numbers of deaths in Britain reported by the National Health Service vary between 40 and 50 a year. The onset of poisoning may be gradual or acute. The symptoms include: