Nitrogen (N) availability is a key factor in plant growth, but the molecular mechanisms underlying the early responses of poplar (Populus × xiaohei T. S. Hwang & Liang) roots to nitrogen are not well understood.
View Article and Find Full Text PDF• The Delta inactivated vaccine constructed in this study has high immunogenicity and good safety. • The inactivated vaccine has good cross-protection against SARS-CoV-2 variants. • The vaccine exhibited high productivity and good genetic stability in production.
View Article and Find Full Text PDFZhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi
September 2004
Objective: To evaluate the safety and immunogenicity of influenza split vaccine.
Methods: According to the criteria of No.2002SL0043, instruction of application for new drug in clinical trial issued by the State Food and Drug Administration, 876 healthy persons were divided at random into vaccine group and control group.