Horizon - Full Series Information, Trailer & IMDb Reviews
Horizon Season 17 Episode 7

Episode Title: Unknown
Genre:
Documentary
Countries:
UK,
Airing Date: February 18, 1981
Runtime:50 mins
IMDb Rating:

Watch Horizon Season 17 Episode 7 online. Maybe available on Youtube, Netflix, PrimeVideo, Hulu, Disney and other legal streaming platforms.
Horizon: Horizon reports on Interferon, a substance created naturally by the body as defense against viruses.