Key points
- Three layers: routine vaccines first (MMR, Tdap/Td, influenza, COVID-19, hepatitis B, varicella, pneumococcal), destination-recommended second, legally required third.
- Yellow fever vaccine is recommended for people aged 9 months and over travelling to at-risk areas in Africa and South America; a single dose gives long-lasting protection (CDC).
- For Hajj and Umrah in 2026, Saudi Arabia requires a quadrivalent meningococcal (ACYW) certificate for all pilgrims aged 1 year and over — check the Saudi Ministry of Health for the pilgrimage year.
- This page never gives a traveller a personal list. Always check the CDC destination page and the country's own requirements before travel, and see a clinician at least a month ahead.
Direct answer: Travel vaccination has three layers: routine vaccines first (make sure MMR, Tdap/Td, influenza, COVID-19, hepatitis B, varicella and pneumococcal are up to date), destination-recommended second (hepatitis A, typhoid, rabies, Japanese encephalitis, meningococcal, cholera — by destination, season and activities), and legally required third (yellow fever in parts of Africa and South America, and meningococcal ACYW for Hajj and Umrah). Requirements change with outbreaks, so check the CDC destination page and the country's own rules before travel. This page never gives a traveller a personal list.
Layer 1: routine first
Before any destination-specific vaccine, the routine schedule comes first. CDC Travelers’ Health destination pages carry the same line for international travellers everywhere: be up to date on routine vaccines — MMR, Tdap/Td, influenza, COVID-19, hepatitis B, varicella and pneumococcal. The reason is practical: measles, which is resurging worldwide, is the infection travellers most often meet, and the MMR line appears on destination pages precisely because unvaccinated travellers bring it home. The routine vaccines are covered in the vaccinations guides on this site; the point here is order — routine first, destination second.
Layer 2: destination-recommended
The second layer depends on where you are going, when, how long for, and what you will do there. The CDC Yellow Book 2026 lists the usual candidates: hepatitis A, typhoid, rabies, Japanese encephalitis, meningococcal vaccine (for the meningitis belt in sub-Saharan Africa, in the dry season from December to June), and cholera. None of these is a universal requirement — each is recommended for some destinations, seasons and activities and not others. That is why this page does not list them by country: a list copied here would be out of date the moment an outbreak moves, and the CDC destination page for the specific country is the source that stays current.
Layer 3: legally required
Very few vaccines are legally required at a border. Yellow fever is the main one: it is recommended for people aged 9 months and over travelling to or living in areas at risk in Africa and South America, and for most people a single dose provides long-lasting protection, with a booster not routinely needed (CDC yellow fever vaccine page). Certain countries require proof of vaccination — either for all arrivals or for arrivals from a yellow-fever country, including in some cases after a transit of more than 12 hours in an airport. Since 2016 the International Certificate of Vaccination or Prophylaxis (the “yellow card”) is valid for life under the International Health Regulations. The exact current list of countries requiring yellow fever proof is not published on this page — it changes, and the CDC Yellow Book country list (current as of December 2024) and the destination pages are the sources to check. The other legally required vaccine is meningococcal ACYW for Hajj and Umrah, below.
Hajj and Umrah — 2026 pilgrimage year
For Hajj and Umrah, Saudi Arabia requires all pilgrims aged 1 year and over to submit a certificate of quadrivalent (ACYW) meningococcal vaccination, issued no more than 3 years (polysaccharide vaccine) or 5 years (conjugate vaccine) and no less than 10 days before arrival in Saudi Arabia (CDC Yellow Book, “Saudi Arabia: Hajj and Umrah Pilgrimages”, 2 April 2026). In 2024 Saudi Arabia also required proof of COVID-19 and meningococcal vaccination for all pilgrims, polio vaccination for pilgrims from countries where polio is reported, and yellow fever vaccination for arrivals from yellow-fever-endemic countries. Requirements must be checked with the Saudi Ministry of Health for the pilgrimage year — the 2026 requirements are the ones to verify, and this page is dated by that pilgrimage year. Hajj 2026 falls in late May 2026; Umrah runs through the year, and its requirements are the same meningococcal rule.
Timing, and where to check
Two timing points matter. CDC destination pages advise seeing a clinician at least a month before travel, because some vaccines take time to work and some need more than one dose. And the yellow fever certificate becomes valid 10 days after vaccination — travelling sooner leaves the certificate unusable at the border. The check-before-you-travel rule is the whole point of this page: entry requirements and outbreak-driven recommendations change, so the CDC destination page for the country, the WHO travel-health pages, and the destination country’s own health authority are the sources to check, every trip. This page was last checked on 7 November 2026.
Frequently asked questions
Do I need a yellow fever vaccine to travel?
It depends on the destination. Yellow fever vaccine is recommended for people aged 9 months and over travelling to at-risk areas in Africa and South America, and some countries legally require proof of vaccination. Check the CDC destination page for the specific country.
What vaccines do I need for Hajj or Umrah?
For 2026, Saudi Arabia requires a quadrivalent meningococcal (ACYW) vaccination certificate for all pilgrims aged 1 year and over. Requirements change by pilgrimage year — check with the Saudi Ministry of Health.
How far ahead should I see a clinician before travel?
CDC destination pages advise at least a month before travel. Some vaccines take time to work, and the yellow fever certificate becomes valid 10 days after vaccination.