In August, follow-up testing of paired-serum samples found a fourfold rise in neutralization antibody titer for H5N1, a test result which meets the WHO criteria for laboratory confirmation.

• 在8月,配对血清样本的后续检测发现H5N1中和抗体效价增加4倍,这是符合世卫组织实验室确诊标准的检测结果。