References

  1. Office for National Statistics. Travel trends: 2018. 24 May 2019. Available online: https://www.ons.gov.uk/peoplepopulationandcommunity/leisureandtourism/articles/traveltrends/2018 (Last accessed August 2019).
  2. Valneva UK Limited. Data on File. Exploring UK’s Travellers Habits in Relation to Travel Vaccinations. February 2018.
  3. Valneva UK Limited. Data on File. Beware of the Bugs Media Campaign Data. May 2019.