摘要:The behaviour of alpha 1 antitrypsin in fever stress condition had been investigated on a lot of 51 males and females subjects. 76.4% of them had adaptative reaction by increasing the alpha 1 antitrypsin; 23.5% with basal normal values had no significant reaction in the fever phase and only one subject was deficiently in both conditions. The significance of the non-reactive subjects supports discussion about their limited antielastatic capacity in important aggressions, in spite of the normal basal values.