Fenbendazole is also available in a "lick-block" form that can be used with pastured cattle. A well-planned parasite control program strategically timed to minimize contamination of lots and pastures ...
For decades, the screwworm was eliminated in North America, but containment efforts in Panama have failed. Now cattle smugglers are helping the parasite advance north.
The European Centre for Disease Prevention and Control said infected ... and collected blood from sheep, cattle and deer. Scientists believed the parasite could have travelled to the north east ...