Volume 18, Number 4—April 2012
Vector Blood Meals and Chagas Disease Transmission Potential, United States
|Assay and Triatoma spp.||T. cruzi||Location†||No. vertebrate blood meal sources
||Haplotypes (no.) of vertebrate blood meal sources amplified in clones
||No. non–blood meal clones
|T. rubida||–||R||10||1||2||B, C||7||1|
|T. protracta||+||E||8||1||2||A, B||6|
|T. recurva‡||–||8||A (7), B|
|T. protracta||+||M||8||1||2||A (7), B|
|T. protracta||+||M||8||2||4||A (4)||A (2), B, C|
|T. rubida||–||M||6||2||3||A (4), B||A|
|T. rubida||–||M||7||2||2||A||A (6)|
*Vector species, T. cruzi infection status, collection location, number of clones sequenced, number and identity of taxa, and number of haplotypes represented in the clone sequences are indicated. Blank cells indicate clones were not found. For the cytB assay, the number of clones that were Triatoma spp. vector DNA or had uninterpretable sequences are indicated. The mouse-fed control (cytB assay) had 2 mouse haplotypes. Haplo, haplotypes; rat, woodrat; chick, chicken; ND, not determined because of low quality sequence data; –, negative; +, positive.
†Insects were collected by using light traps at Redington Road, Tucson, Arizona (R), and Escondido, CA (E), in 2007, and within the Arizona-Sonora Desert Museum, Tucson, AZ (M), in 2009. The light traps were in “wilderness” (museum) and “sylvatic” (Redington Road and Escondido) habitats and not in human habitations.