When did DW Documentary Season 9 Episode 118 air?
DW Documentary Season 9 Episode 118 aired on September 19, 2025.


Exciting stories on a wide variety of topics from around the globe: DW brings viewers background reports from the worlds of politics, business, science, culture, nature, history, lifestyle and sport.
Our immune system protects us from pathogens, harmful substances and malignant cell changes. For humans, it is indispensable. This film examines the immune system and shows how it can be strengthened - as well as how it can fail. The film presents fascinating examples, clear explanations and interviews with international experts. A pediatrician in Hamburg explains how the immune system develops in infants and young children. Immunologists in Paris and New York shed light on the relationship between the microbiome and the immune system. And an oncologist in Heidelberg uses immunotherapy to specifically combat cancer. Never before has the immune system been the focus of so much scientific research as it is now.
Direct answers for episode-level questions and details.
DW Documentary Season 9 Episode 118 aired on September 19, 2025.
This episode runs for approximately 43 minutes.
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