一名发言人说：“这个类别目前正在研究之中。”
"The category is currently under research", a spokesman said.
PDBML文档目前包含多至177个类别的信息，其中大多数是可选的。
PDBML documents currently contain up to 177 categories of information, most of them optional.
病媒控制在很大程度上依赖对拟除虫菊酯(用于杀虫剂)的使用，这是用于目前推荐的经杀虫剂处理过的蚊帐或经长效杀虫剂处理过的蚊帐的唯一杀虫剂类别。
Vector control is highly dependent on the use of pyrethroids, which are the only class of insecticides used on currently recommended ITNs or LLINs.
应用推荐