Main ultrastructrual changes included cytoplasm degeneration, want of pinocytotic vesicle and phagosone, decreased organelles and granules, mitochondria swelling, nucleus condensation, etc.

• 主要包括：中性粒细胞质变性，吞噬泡欠缺，细胞器及细胞颗粒减少，线粒体肿胀，细胞核浓缩等。