Conclusion Different types of strains predominated alternatively, and the rise and fall of influenza antibody level among people conformed to the type of dominant strain.
结论不同型别的毒株表现出交替占优势的特征，人群流感抗体水平的消长与优势株的型别一致。
Conclusion Different types of strains predominated alternatively, and the rise and fall of influenza antibody level among people conformed to the type of dominant strain.
结论不同型别的毒株表现出交替占优势的特征，人群流感抗体水平的消长与优势株的型别一致。
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