For example, immunologists reported last fall that patients injected with an experimental DNA-based malaria vaccine showed not just malaria antibodies but also significant levels of killer T cells.

 
  • 例如,去年秋天免疫学家报道,病人注射了实验DNA霍乱疫苗不仅出现霍乱抗体,而且杀伤性T细胞的水平也明显增加。
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