![](https://image.tmdb.org/t/p/original/6aveHX0goqrnmMnWzbTtc2Ofx9E.jpg)
![](https://image.tmdb.org/t/p/w342/5O6yMOGWqfJX0TWHahai4nR8z3i.jpg)
The Invisible Enemy
Professor Jonathan Van-Tam is joined by leading experts to explore viruses, the immune system and modern testing technology.
![](https://image.tmdb.org/t/p/w300/s4vlHqP5efHYh3nOFfOfTKclY1L.jpg)
![](https://image.tmdb.org/t/p/w300/eIHXl4rbMtuyTSDl6WBPyZVzPvD.jpg)
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Other episodes for this season
![The Invisible Enemy](https://image.tmdb.org/t/p/w300/6aveHX0goqrnmMnWzbTtc2Ofx9E.jpg)
![The Perfect Storm](https://image.tmdb.org/t/p/w300/afaRFmqhr2bFZxkUrfkycfKznP.jpg)
![Fighting Back](https://image.tmdb.org/t/p/w300/A9LRc8Z31eXeuRMREIdRZ4SkOJC.jpg)
Professor Jonathan Van-Tam is joined by leading experts to explore viruses, the immune system and modern testing technology.