Is a 'winter booster dose' recommended?04:15 Source: SBSSBS GermanView Podcast SeriesFollow and SubscribeApple PodcastsYouTubeSpotifyDownload (3.9MB)Download the SBS Audio appAvailable on iOS and Android A booster dose will make sure the protection from your first doses is even stronger and longer lasting, experts claim.ShareLatest podcast episodesThe charm of Eumundi MarketsAdelaide German Week25 years of the Sydney Summer OlympicsMusic against oblivion: Musica Prohibita in Brisbane