However, this mosquito species has re-colonized urban areas in the region and poses a renewed risk of urban yellowfever.
然而，随着这一类蚊虫在该地区再次出现，城市型黄热病有可能死灰复燃。
2
The risk of yellowfever transmission in urban areas can be reduced by eliminating potential mosquito breeding sites and applying insecticides to water where they develop in their earliest stages.
通过清除潜在的蚊虫繁殖场所，以及在蚊虫早期孽生的水中喷洒杀虫剂，可降低黄热病传播的风险。
3
Mosquito control programmes targeting wild mosquitoes in forested areas are not practical for preventing jungle (or sylvatic) yellowfever transmission.