Volume 13, Number 12—December 2007
Escherichia coli O157:H7 in Feral Swine near Spinach Fields and Cattle, Central California Coast1
|Sample type||No. samples||No. isolates||MLVA type|
|Reference (human stool, bagged spinach)||NA||NA||E|
|Cattle feces||26||34||A, C, E, F, I, J, L, M, P, Q, R, S, T, W, X, Z|
|Feral swine feces||11||14||A, B, C, E, L, O, P, X, 5, 6|
|Feral swine colonic feces (necropsy)||2||10||A, C, D, G, H, K, L, U, V, Y|
|Sediment (river)||2||8||A, C, L, M, N, W, 3|
|Soil (cattle pasture)||1||1||A|
|Surface water||3||6||A, C, L, P, 4|
|Surface water Moore swab†||2||3||1, 2|
*MLVA, multilocus variable number tandem repeat analysis; NA, not applicable. Samples indistinguishable from the major spinach-related outbreak strain by pulsed-field gel electrophoresis (XbaI-BlnI PulseNet profile EXHX01.0124-EXHA26.0015) are shown in boldface.
†Isolates collected from surface water (river) ≈32 km upstream of ranch A.
1This work was presented in part as a poster at the 107th General Meeting of the American Society for Microbiology, Toronto, Ontario, Canada, May 24, 2007.