Normally, the immuneresponse tightly controls the local inflammatory process to eradicate invading gram-negative bacteria .
正常情况下，免疫反应精细地调控局部炎症反应。
2
When a Kell positive man impregnates a Kell negative woman, there is a 50 percent chance of provoking an immuneresponse in the woman's body that attacks her developing fetus.