後天免疫 獲得免疫
immunity to a particular disease that is not innate but has been acquired during life immunity can be acquired by the development of antibodies after an attack of an infectious disease or by a pregnant mother passing antibodies through the placenta to a fetus or by vaccination
先天的ではないが、生存中にかかる特定の病気に対する免疫 免疫は、伝染病の発作の後の抗体の発達、胎盤を通して胎児へ抗体を送る妊婦、あるいは予防接種によって獲得することができる