prevnarCOCA²²³⁵⁹⁶ 基本例句 🌏肺炎结合疫苗；肺炎球菌疫苗；疫苗沛儿 Wyeth, an American firm, led the charge with Prevnar, a pneumococcal vaccine, which in2004 became the first vaccine to reach a billion dollars in sales. 美国惠氏 Wyeth公司率先对定价模式进行了改革。2004年它推出的肺炎球菌疫苗 Prevnar成为首个销售额突破10亿美元的疫苗产品。 ecocn