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由于卡氏肺孢子虫难以分离和纯化,有关该虫的生物化学、免疫化学和生物物理特性几乎一无所知.取得大量虫体的困难主要
Due to the difficulty in isolating and purifying Pneumocystis carinii, little is known about the biochemical, immunochemical, and biophysical properties of the Pneumocystis carinii. The difficulties with obtaining large numbers of parasites are mainly