'mosquito-spread' originates from the combination of 'mosquito' and 'spread', where 'mosquito' refers to the insect known for transmitting diseases, and 'spread' means to extend or distribute over an area.

The term 'mosquito-spread' evolved from the need to describe diseases or conditions that are transmitted by mosquitoes.

Initially, it meant 'spread by mosquitoes', and this meaning has remained consistent in modern usage.