“…A weight-related dose (14mg/kg) considerably higher than the human dose [5] 24 h, 2, 4, 7, 10, 14, 21 days) groups of five or six rats were anaesthetised with ether and exsanguinated. Formalin-killed strain CN6134 (batch numbers BA 3935/A, CA 732, and CA 749) was obtained from Wellcome Reagents Ltd., Beckenham, Kent, England, at a concentration of 7 mg dry weight washed micro-organism per ml pyrogen-free physiological saline with 0.01% thiomersal as preservative.…”