Theileria sp. Infections Associated with Bovine Fatalities in the United States Confirmed by Small-Subunit rRNA Gene Analyses of Blood and Tick Samples

AUTOR(ES)

Chae, Joon-seok

FONTE

American Society for Microbiology

RESUMO

Theileria sp.-specific small subunit (SSU) rRNA gene amplification confirmed the presence of the organism in cattle and in Amblyomma americanum and Dermacentor variabilis ticks collected from a cattle herd in Missouri. Blood from the index animal had type A and type D Theileria SSU rRNA genes. The type D gene was also found in blood from two cohort cattle and tick tissues. The type A SSU rRNA gene was previously reported from bovine Theileria isolates from Texas and North Carolina; the type D gene was reported from a Texas cow with theileriosis.

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