Is the Pandemic expansion "In the Lab" available in multiple languages?
Check the versions listed on BGG, it appears there's no Dutch version:
https://boardgamegeek.com/browse/boardgameversion?linked_src_objecttype=thing&amp;linked_src_objectid=137136

Also, I haven't found a Dutch version for this on several Belgian and Dutch web shops.

(On a side note: the Dutch version of Pandemic has some textual errors on the role cards. Just in case you didn't know.)