Organism immunity level will reduce.

机体的免疫水平会降低。

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The immunity level of cell decreased seriously or the level of TAb increased largely.

细胞免疫水平严重下降或结核抗体水平高度上升者；

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In many counties, towns and nursery schools — within Washington state, Oregon, Vermont and California, especially-vaccination rates are now far below the herd-immunity level.

现在，许多县、镇以及托儿所(特别是华盛顿、俄勒冈、佛蒙特、加利福尼亚等州)，接种率远远低于群体免疫水平。

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Murtha read a statement Wednesday that Tripp "would never have voluntarily waived her constitutional rights" when she provided the tapes to Starr's office if she had known she could be prosecuted at the state level, despite the immunity against prosecution at the federal level.

CNN: Lewinsky to testify in Tripp wiretap case

Director of the Public Health Agency Dr Caroline Harper said this age group was vaccinated last year and now 50-60% had built up some level of natural immunity.

BBC: Health Committee

With the highest level of noise immunity, ClearPad 3400 performs with precision even in the presence of noise interference, which can be exacerbated by a range of factors, including the use of noisy handset power supplies.

ENGADGET: Synaptics launches a pair of mobile touchscreens at MWC 2013