对一些国家来说，情况可能进一步恶化。 帮助融资支持新疫苗的大幅全球扩张的国际组织Gavi对于其认为已从援助“毕业”的国家逐渐收回支持。
For some countries, the situation is about to get worse, as Gavi, the international group which has helped to finance the dramatic global expansion of new vaccines, phases out support for countries deemed to have “graduated” from assistance.