Countryfile Winter DiariesSeries 3Episode 4BBC One Duration: 44 minutesFirst broadcast: Thu 21st Feb 2019, 09:15 on BBC One WestLatest broadcast: Thu 21st Feb 2019, 09:15 on BBC One Wales HDThe team investigates a medical breakthrough poised to wipe out flu and meets a miracle hearing dog working wonders for a deaf teenager.ContributorsPresenter:John CravenPresenter:Jules HudsonPresenter:Keeley DonovanPresenter:Margherita TaylorPresenter:Paul MartinSeries Producer:Jane LomasExecutive Producer:William LyonsDirector:Mark DavenportDirector:Chris GreenwoodDirector:Richard MaxwellGenresFactualScience & NatureNature & EnvironmentBrandCountryfile Winter DiariesSeriesCountryfile Winter Diaries: Series 3 Source: BBC Online