Almost every travel health problem is a timing problem

Practical guides for UK travellers on vaccinations, travel insurance, the GHIC and carrying prescription medicines — organised around the one thing that determines whether any of it works: lead time.

A calendar, passport and vaccination record laid out for trip planning
Photo brief: calendar, passport and vaccination record card laid flat, shot from above, no readable personal data.
4-6 weeksminimum lead time for most vaccine courses
10 daysbefore a yellow fever certificate is valid
5 yearsGHIC validity

Countdown before departure

  1. 12 weeksBook the travel clinicMulti-dose courses need months, not days.
  2. 8 weeksApply for or renew the GHICFree from the NHS site; arrives by post.
  3. 6–4 weeksStart vaccine coursesRabies, hepatitis B, Japanese encephalitis where needed.
  4. 10 daysYellow fever validityCertificate only counts from day 10 after the jab.

Full schedule: The twelve-week countdown.

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