antigenic drift 中文意思是什麼
antigenic drift
解釋
抗原漂流-
The result shows that a vvibdv strain was obtained, the above work lay a important role for further studying on the molecular biological mechanism of antigenic drift and virulence variation of ibdv, molecular epedimiology, it also provided the basis for recombinant and gene deleted vaccine of ibdv
本實驗可以幫助我們進一步探討ibdv抗原性漂移和毒力變化的分子生物學機制，追溯ibdv的起源，理解病毒的傳播方式。同時也為研製開發基因重組疫苗和缺失疫苗打下一定的基礎。 -
To elucidate the antigenic drift and evolution of h9n2 subtype avian influenza viruses ( aivs ), five isolates from the north of henan province during 1998 - 2002 were compared and analysed by cross - hemagglutinin inhibition test ( hi ), cross - virus neutralization test ( vn ) in the chicken embryo and chicken embryo primary kidney cell ( cek ) and cross protection against challenge infection test
為了探討h _ 9n _ 2亞型禽流感病毒的抗原性有否發生漂移，本研究從生物學角度和ha基因分子水平上對1998 ? 2002年間在河南省豫北地區分離到的5株h _ 9n _ 2亞型禽流感病毒的抗原性變化進行了比較和分析。 -
The surface antigens of influenza viruses undergo frequent changes. such changes can be minor called antigenic drift or major called antigenic shift
流感病毒的表面抗原會常常改變，這些改變有時較小，稱為抗原漂移antigenic drift ，有時則較大，稱為抗原轉移antigenic shift 。 -
Separation on a new antigenic drift strain a3 of influenza viruses in guizhou
貴州省分離出一株甲3型流感病毒新變異株 -
Seasonal outbreaks of ordinary influenza arise as a result of influenza viruses undergoing minor genetic changes known as antigenic drift
普通流感的季節性爆發，是由流感病毒出現稱為抗原漂移的輕微基因變異所引起。 -
Cause seasonal outbreaks of ordinary influenza arise as a result of influenza viruses undergoing minor genetic changes known as antigenic drift
普通流感的季節性爆發，是由流感病毒出現稱為抗原漂移的輕微基因變異所引起。 -
The results revealed that antigenic drift had occurred in virus strains of the same h9n2 subtype in the north of henan province during 1998 - 2002. h9n2 subtype aivs were stable from 1998 to 1999, since the mutual protection between 98a5 and 99s approached to 100 %, which was consistent with results in hi and vn tests
1998年和1999年h _ 9n _ 2亞型禽流感病毒較穩定， 98a5和99s毒株間的保護力接近100 ，在hi 、雞胚中和、細胞中和試驗結果的相關性均在0 . 74以上，表明兩毒株間的抗原性相近。
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