Can You Get Multiple Travel Vaccines at the Same Time? The 28-Day Live Vaccine Rule

Short answer: yes. Most travel vaccines can be given at the same appointment, in different arms or injection sites, without making any of them less effective or increasing side effects. Getting four or five vaccines in one visit is routine in travel clinics.

There's one timing rule worth knowing, though, because it can quietly cancel out a vaccine: two live injected vaccines must be given on the same day or at least 28 days apart. If they're given closer together than that, the second one doesn't count and has to be repeated.

Why getting several at once is fine

CDC's guidance is that giving the most widely used vaccines at the same visit produces the same immune response and the same rate of side effects as giving them separately. Your immune system deals with countless new antigens every day; a handful of vaccines at once is well within what it handles.

Getting everything in one visit also has real practical advantages: fewer appointments, less time off work, and — most importantly — everything has time to start working before you leave. Spreading vaccines out "to be safe" can actually leave you less protected on the trip.

The vaccines are given at different injection sites — often both arms, sometimes the thigh — and never mixed in the same syringe. When two go in the same arm, they're spaced at least an inch apart so any local soreness doesn't overlap.

Live vs non-live: the distinction that matters

Almost every timing rule comes back to one question: is the vaccine live (containing a weakened form of the germ) or non-live (inactivated, or made from part of the germ)?

*Live but taken by mouth — the 28-day rule doesn't apply to these (see below).

The rules are simple from there:

• Non-live + non-live: any combination, any interval, including the same day.
• Non-live + live: any combination, any interval, including the same day.
• Live + live (injected): same day, or at least 28 days apart.

The 28-day live vaccine rule

When you receive a live vaccine, your body mounts an immune response that, for a few weeks, can interfere with how well it responds to a second live vaccine. If both are given on the same day, they're processed together and both work. If they're given weeks apart, the first response has settled down. The problem window is in between.

CDC's rule is that two live injected vaccines not given on the same day should be separated by at least 4 weeks. If they're given less than 4 weeks apart, the second vaccine shouldn't be counted and must be repeated at least 4 weeks later. Unlike most vaccine intervals, there's no grace period on this one.

How this trips travellers up

A typical example: you see your family doctor for an MMR catch-up on the 1st of the month, then visit a travel clinic on the 10th for yellow fever. Neither clinic does anything wrong in isolation — but your yellow fever vaccine has landed inside the 28-day window.

The fix is simple: tell every clinic about every vaccine you've had in the past month, and if you know you'll need two live vaccines, try to get them on the same day. With measles circulating widely, MMR checks are now a standard part of travel prep — see why your MMR status matters for every trip — so this combination comes up more often than it used to.

The yellow fever + MMR wrinkle

There's one extra nuance with this particular pair. CDC notes that when yellow fever and MMR are given on the same day, the immune response to some components (yellow fever, mumps and rubella) can be a little weaker. The ideal is one month apart. But CDC is also clear that giving them together is acceptable when that's what it takes to get you protected before travel. If you have six weeks or more, space them; if you don't, get them together.

The exceptions: oral vaccines

Two live travel vaccines are swallowed rather than injected, and they follow different rules:

• Oral typhoid (Vivotif) can be taken at the same time as, or at any interval before or after, other vaccines — including live injected ones like yellow fever and MMR. Its catch is antibiotics, which can kill the live bacteria; see typhoid and hepatitis A: can you get them together?
• Oral cholera vaccine has its own rules — for example, Canadian guidance is to separate it from oral typhoid by at least 8 hours, and CDC advises against taking Vaxchora within 14 days of antibiotics.

Immune globulin and live vaccines

One more interaction to know about: immune globulin (antibody injections, sometimes given for hepatitis A protection or after a rabies exposure) can blunt the response to MMR and chickenpox vaccines. CDC advises that these live vaccines are generally delayed for months after immune globulin, depending on the product and dose. Yellow fever vaccine and oral typhoid aren't affected in the same way. If you've had any antibody product recently, tell the clinic.

Combination vaccines: fewer needles

Some vaccines come combined in one injection:

• Twinrix — hepatitis A and hepatitis B together. It also has a very rapid schedule (days 0, 7 and 21, plus a booster at 12 months) for adults short on time — see last-minute travel vaccines.
• Tetanus–diphtheria–polio boosters are often given as one shot.

The combined hepatitis A + typhoid vaccine, once common, has been discontinued in the UK and Canada and was never licensed in the US, so most travellers now get those as two separate injections.

What to expect afterwards

Most people feel fine or have a sore arm for a day or two. Some vaccines are more likely to cause a reaction:

• Yellow fever: CDC reports that 10–30% of people get mild symptoms such as headache, low-grade fever and muscle aches, lasting 5–10 days.
• Typhoid injection: headache, injection-site soreness and mild fever are the most commonly reported reactions.
• Several injections at once can mean two sore arms — wear a loose, short-sleeved top to your appointment.

Practical tips:

• Don't schedule your appointment the day before a long-haul flight if you can avoid it. A day of feeling below par is easier at home.
• Move your arms afterwards — it helps the soreness.
• Tell the clinic about allergies, pregnancy, immune-suppressing conditions or medicines before any live vaccine.
• Seek medical advice for anything more than mild, short-lived symptoms after a vaccine.

Planning a multi-vaccine trip

If you need a lot of vaccines, a good travel clinic will build a schedule around a few principles:

1. Hard deadlines first. A required yellow fever certificate isn't valid until 10 days after vaccination.
2. Multi-dose vaccines early. Rabies (days 0 and 7), Japanese encephalitis and hepatitis B need more than one visit. See how far in advance to see a travel doctor.
3. Live vaccines on the same day where possible.
4. Everything else at the first visit. Hepatitis A, typhoid injection and routine boosters can all go in together.

A typical first appointment for a month in Southeast Asia might be hepatitis A, typhoid, rabies dose 1, Japanese encephalitis dose 1 and a tetanus booster — five injections in one visit — with rabies dose 2 and JE dose 2 a week or so later. See our guides to Thailand, Vietnam, Bali and India for what's typically recommended where, or check any destination on the interactive vaccine map.

Frequently asked questions

Can you get yellow fever and typhoid vaccines together?

Yes. The typhoid injection is non-live, so it can be given with yellow fever on the same day or at any interval. Oral typhoid capsules can also be taken at any time around a yellow fever vaccine.

How many vaccines can I get at once?

There's no fixed limit. CDC says giving the widely used vaccines at the same visit produces the same immune response and side-effect rates as giving them separately. Travel clinics routinely give four or five at once.

I had MMR two weeks ago. Can I get yellow fever now?

Under the 28-day rule, a live vaccine given less than 4 weeks after another shouldn't be counted. CDC's advice for yellow fever is to give it on the same day as other live vaccines or wait one month. If your trip can't wait, discuss the options with the clinic.

Can I get the flu shot or COVID-19 vaccine with travel vaccines?

Yes. Injected flu and COVID-19 vaccines are non-live and can be given at the same visit as travel vaccines.

Do hepatitis A and hepatitis B need to be spaced apart?

No. Both are non-live and can be given together — or combined in one shot as Twinrix.

Is the chikungunya vaccine live?

There are two. Ixchiq is a live vaccine, but the FDA suspended its US licence in August 2025 over safety concerns. Vimkunya is non-live. See our chikungunya vaccine guide for who it's recommended for.

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Sources: CDC – Timing and Spacing of Immunobiologics (General Best Practice Guidelines) · CDC Yellow Book – Vaccination and Immunoprophylaxis: General Principles · CDC Yellow Book – Yellow Fever · CDC Yellow Book – Typhoid and Paratyphoid Fever · CDC Yellow Book – Cholera · Canadian Immunization Guide – Typhoid vaccines · Immunize.org – Ask the Experts: Administering vaccines · CIDRAP – FDA suspends license for chikungunya vaccine Ixchiq

This article is for informational purposes only and does not constitute medical advice. Vaccine timing depends on your health, medications and full vaccination history — always consult a qualified travel health professional or GP before travel.