Vector Type
Other
Vector Species Name
Musca domestica
Vector Common Name
Common Housefly

Vector Information

The common housefly is one of the most widely distributed insects and has the ability to transmit disease to people. This fly is found throughout the US and is commonly found in homes and restaurants. Because of its close association with people and its ability to transmit disease, it is considered a greater threat to human welfare than any other species of non-biting fly. They can carry more than 1 million bacteria on their bodies and can transfer these to contaminate surfaces and food. The common housefly can transmit the pathogens that cause shigellosis, typhoid fever, E. coli, and cholera. The disease-causing agents can either be transmitted by the body hairs or by the tarsi which are transmitted to food or surfaces when the fly lands. Additionally, pathogens can be transmitted when a fly regurgitates onto food in order to liquefy material for digestion. The life cycle of the fly starts with the egg and larval stage. These two stages develop in animal and vegetable refuse. In favorable conditions, eggs can hatch in as little as 24 hours. Fly larvae (maggots) are a creamy-white color and are about 1/2 inch long. This stage lasts for 4-7 days and the shell hardens and darkens. This marks the beginning of the pupal stage. When the pupal stage is complete, the adult fly exits the puparium, dries, hardens, and flies away to feed, with mating occurring soon after emergence. 

Found In
AL
AK
AZ
AR
CA
CO
CT
DE
FL
GA
HI
ID
IL
IN
IA
KS
KY
LA
ME
MD
MA
MI
MN
MS
MO
MT
NE
NV
NH
NJ
NM
NY
NC
ND
OH
OK
OR
PA
RI
SC
SD
TN
TX
UT
VT
VA
WA
WV
WI
WY
DC

*Disease transmission varies locally. This map depicts where vectors can be found geographically and provides information about diseases these vectors might carry. Vectors might be present in a state or locality, however, and not be carriers of any particular disease. In addition, identified vectors may have a presence in a state, but may not be found throughout that state.