environmental issues remain a significant concern as open burning is not considered by who to be an acceptable means of disposing of immunization-related waste.
由于世卫组织不认为露天焚烧是一种可接受的与免疫有关的废物处理手段,环境问题仍然是严重关切。
non-industrialized countries continue to use a variety of methods—including incineration (74%) burial (45%) and open burning (50%)—for disposal of immunization-related waste.