Twelve potential vaccines are currently being tested on human volunteers.目前正在人類志愿者身上試驗12種試用疫苗。Anti-malarial vaccines are now under-going trials.抗瘧疾的疫苗正在試驗階段。His team are at the forefront of scientific research into vacci...
After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中國開始在大、中城市接種卡介苗 、 百日咳 、 白喉 、 破傷風 、 麻疹、脊髓灰質(zhì)炎的疫苗的工作.Anti-malarial vaccines are now under-going trial...