What is Nuisance according to World Health Organisation?

Answer 1

things that are offensive or potentially injurious to public health as 'nuisances'. There are 17 separate nuisances. They are created, for example, 'where any animal, or any carcass or part of a carcass, is so kept or allowed to remain as to be offensive or likely to be injurious to health' or 'where there exists on any land or premises any condition giving rise or capable of giving rise to the breeding of flies or mosquitoes or suitable for the breeding of other insects, or of mites or ticks, which are capable of causing or transmitting disease'.