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Trypanosoma cruzi in U.S.
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The page below is a sample from the LabCE course
Parasitology Case Studies: Protozoa in Blood (by ASCLS)
. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.
Learn more about Parasitology Case Studies: Protozoa in Blood (by ASCLS) (online CE course)
Trypanosoma cruzi in U.S.
3 genera of triatome (kissing) bugs live in the U.S.:
Triatome, Rhodnius, Panstrongylus
Triatoma gerstaeckeri
is
found
in Texas and New Mexico
Triatoma rubida and T. protracta live in
Arizona and California
T. sanguisuga
is found across the Southeastern U.S.
18 mammals can carry
T. cruzi
including oposums, raccoons, skunks, dogs, wood rats, squirrels, and nonhuman primates
Animals become infected by eating the bugs
Uncommon to have the bugs transmit cases in the U.S.
Most U. S. homes are not a good habitat
Bugs cannot get inside at night
Bugs prefer to stay in the wild only moving into homes in the summer
Kissing bugs transmit
T. cruzi
poorly in the U.S. because the bugs take a blood meal, leave the person and defecate later, unlike bugs in Latin America that defecate on the person immediately after feeding
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