obsolete occlusion by host of symbiont vascular system (obsolete GO:0052494)
OBSOLETE. The process in which an organism reduces the flow of fluid within its symbiont's vascular system, the vessels and tissue that carry or circulate fluids, such as blood, lymph or sap, through the body of an animal or plant. The symbiont is defined as the smaller of the organisms involved in a symbiotic interaction.