The hosts of yellow fever include both humans and monkeys. The cycle of yellow fever transmission occurs as follows: an infected monkey is bitten by a tree-hole breeding mosquito. This mosquito acquires the virus, and can pass the virus on to any number of other monkeys that it may bite.
â Filthy Casual â is a term used on message boards and in comments to negatively describe a gamer who only plays casual games, or a game in any genre that requires a low level of commitment and often has simple gameplay.
The definition of casual is someone or something relaxed, occasional, not planned or informal. 1  An example of casual clothing is jeans and a t-shirt. 2  An example of a casual date is meeting someone for coffee. 3  An example of a casual encounter is happening to see someone at the movies.