The demand for long-lasting insecticidal nets has rapidly increased since 2004, and now outstrips their production, with some countries currently experiencing delays of up to several months in procuring them.
2004年以来，对长效驱虫蚊帐的需求迅速增加，现在供不应求，一些国家目前采购这种蚊帐，要等候好几个月。