Malathion is a pesticide that is widely used in agriculture, residential landscaping, public recreation areas, and in public health pest control programs such as mosquito eradication. In the US, it is the most commonly used organophosphate insecticide.
The average incubation period for the flu is 2 days, but it can last anywhere from 1 to 4 days in healthy adults.
1 With some flu viruses, the fever lasts 4 or 5 days. 2  Contagious period: a person is contagious for 1 day prior to and for 7 days after the onset of symptoms (e.g., the fever and cough). 3  Incubation period: after exposure, a person will come down with swine flu symptoms in 4 to 6 days (5 days on the average).