Chief Pharmacist Marc Donovan answers questions about flu. For more information, please visit To book your winter flu jab, please visit adviceBootsBoots PharmacyBoots Pharmacy coronavirus adviceCoronaviruscoronavirus immune systemCOVID-19COVID19fluimmune systemIMMUNITYIMPORTANTInfluenzajabNHSukvideoVITAMINvlogYearYouTube