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卡介苗是一种经过人工培养的无毒牛型结核杆菌悬液制成的减毒活疫苗,它无致病性,有免疫原性,是预防结核病有效的生物制品。接种后一般不会引起特殊的严重反应。但误将划痕卡介苗作皮内接种或皮内接种卡介苗注射部位过深、接种前疫苗未摇匀或给患有结核的人接种卡介苗等情况下,会引起局部溃疡和淋巴结肿大,有时肿大的淋巴结也会
Bacillus Calmette-Guerin (BCG) is an attenuated live vaccine made from the cultured non-toxic bovine Mycobacterium tuberculosis suspension. It is non-pathogenic and immunogenic and is an effective biological product for preventing tuberculosis. Inoculation generally does not cause special serious reactions. However, mistakenly scratched BCG for intradermal or intradermal vaccination BCG injection site too deep, vaccinated before vaccination is not shaken or tuberculosis patients vaccinated with BCG and other circumstances, will cause local ulcers and lymph nodes, sometimes swollen Large lymph nodes will also