АВИРУЛЕНТНОСТЬ

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ХудшийЛучший 

АВИРУЛЕНТНОСТЬ — неспособность отдельных штаммов (разновидностей) патогенных микроорганизмов вызывать заболевание . Возникает в результате воздействия на микроорганизм неблагоприятных для него факторов и условий: таких, например, как антибиотики, выращивание на специальных искусственных средах, заражение животных, имеющих высокую сопротивляемость в отношении данного микроорганизма. Авирулентные штаммы различных микроорганизмов, полученные в лабораторных условиях, широко используются для получения живых вакцин, в частности, против гриппа, полиомиелита, кори и других распространенных инфекционных болезней.





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