TY - JOUR AU - Oakes, Vanessa AU - Yabsley, Michael AU - Schwartz, Diana AU - LeRoith, Tanya AU - Bissett, Carolynn AU - Broaddus, Charles AU - Schlater, Jack AU - Todd, S. Michelle AU - Boes, Katie AU - Brookhart, Meghan AU - Lahmers, Kevin T1 - Theileria orientalis Ikeda Genotype in Cattle, Virginia, USA T2 - Emerging Infectious Disease journal PY - 2019 VL - 25 IS - 9 SP - 1653 SN - 1080-6059 AB - Theileria orientalis Ikeda genotype is a parasite that causes a disease in cattle that results in major economic issues in Asia, New Zealand, and Australia. The parasite is transmitted by Haemaphysalis longicornis ticks, which have recently been reported in numerous states throughout the eastern United States. Concurrently, cattle in Virginia showed clinical signs consistent with a hemoprotozoan infection. We used amplicons specific for the major piroplasm surface protein and small subunit rDNA of piroplasms to test blood samples from the cattle by PCR. Bidirectional Sanger sequencing showed sequences with 100% identity with T. orientalis Ikeda genotype 2 sequences. We detected the parasite in 3 unrelated herds and from various animals sampled at 2 time points. Although other benign T. orientalis genotypes are endemic to the United States, detection of T. orientalis Ikeda genotype might represent a risk for the cattle industry in Virginia. KW - Theileria orientalis KW - Ikeda genotype KW - parasites KW - cattle KW - infectious disease KW - ticks KW - Ixodidae KW - anemia KW - zoonoses KW - tick-borne infections KW - vector-borne infections KW - theileriosis KW - Haemaphysalis longicornis KW - Virginia KW - United States DO - 10.3201/eid2509.190088 UR - https://wwwnc.cdc.gov/eid/article/25/9/19-0088_article ER - End of Reference