Comparison of Conventional and Delayed Secondary Enrichment for Isolation of Salmonella Spp. from Swine Samples

United States.6 It is a metastrongylid nematode with slug and snail intermediate hosts.12 Adult worms are found in the cranial subarachnoid space, in the cranial venous sinuses, and, occasionally, in the spinal subarachnoid space.3,16 Eggs are usually deposited directly into venous sinuses and carried via the circulation to the lungs, where they embryonate into first-stage larvae.16 Eggs deposited in the meninges embryonate, and larvae penetrate venous sinuses and are carried to the lungs.16 First-stage larvae are passed in the feces after being swallowed, following tracheal migration.16 Lar-