[The level of nitroblue tetrazolium (NBT) positive cells in some organs of mice infected with Trichinella spiralis].

The percentage of NBT-positive cells in peritoneal fluid, spleen and mesenteric lymph node of CWF mice infected orally with 200 Trichinella spiralis larvae was investigated. The highest level of NBT-positive cells in peritoneal fluid was found on the 5-6th and 50-60th day post infection (p.i.), in spleen between the 30-75th and in mesenteric lymph node between the 50-75th day p.i. The lack of reaction between peritoneal fluid cells and newborn migrating larvae at the 15th and 20th day p.i. observed by the authors, may be associated with slight activity of these cells in the NBT reduction test between 8-30th day p.i.