Like dysentery, typhus, diphtheria, the epidemic brain keel turns the membrane inflammation and hepatitis B and so on, may have the recovery period cause of disease carrier.
如痢疾、伤寒、白喉、流行性脑脊翻膜炎和乙型肝炎等，都可以有恢复期病原携带者。
Objective To express the nontoxic mutant CRM197 of diphtheria toxin and study its effect as a carrier protein.
目的表达白喉毒素无毒变异体CRM197，并考察其载体作用。
Like diphtheria, keel position gray matter inflammation and so on, common healthy cause of disease carrier.
如白喉、脊位灰质炎等，常有健康病原携带者。
Like diphtheria, keel position gray matter inflammation and so on, common healthy cause of disease carrier.
如白喉、脊位灰质炎等，常有健康病原携带者。
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