Vector Type
Ticks
Vector Species Name
Dermacentor variabilis
Vector Common Name
American Dog Tick

Vector Information

The American dog tick is a commonly found tick East of the Rocky Mountains and can also be found in limited areas on the Pacific Coast. These ticks are able to transmit Tularemia and Rocky Mountain Spotted Fever. Female ticks are more likely to bite and feed on humans. Biting occurs most often during spring and summer months. Ticks need a blood meal at each life stage to progress to the next stage. Life stages include larvae, nymph, and adult. American dog ticks are typically found in areas with little or no tree cover and are typically found in leaf litter or tall grass. These ticks can survive in any given life stage for up to two years if no host is found.  The adult female ticks can be identified by their large off-white scutum against a dark brown body. The adult males lack the off-white scutum but have a mottled gray coloration along their backs. 

Found In
AL
AR
CA
CT
DE
FL
GA
IL
IN
IA
KS
KY
LA
ME
MD
MA
MI
MN
MS
MO
MT
NE
NH
NJ
NY
NC
ND
OH
OK
PA
RI
SC
SD
TN
TX
VT
VA
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.