Some people may experience side effects after some travel vaccinations:

Cholera vaccine

Some people (less than 1%) experience symptoms similar to mild stomach upset, such as mild abdominal pain, diarrhea and nausea. Severe reactions are rare.

Hepatitis A vaccine

Some people develop temporary soreness, redness and hardening of the skin at the injection site. A small, painless lump may also form at the injection site. This usually disappears quickly and is no cause for concern. Much less common side effects are mild fever, tiredness, headache, loss of appetite and feeling sick.

Hepatitis B vaccine

Some people develop temporary soreness and redness at the injection site. Severe reactions are rare.

Japanese encephalitis vaccine

About 20% of people who are vaccinated against Japanese encephalitis develop temporary soreness, redness and swelling at the injection site. About 10% of people who have the vaccine experience other side effects, such as fever, headache, tiredness, chills, dizziness, nausea, vomiting and abdominal pain.

In a small number of cases (about 0.6%), an allergic reaction to the vaccination can occur. The reaction can cause a rash, swelling of the face, and, in rare cases, breathing problems. Any allergic reaction usually occurs within minutes of having the injection, but in some cases it can be delayed for up to two weeks. For this reason, the course of injections needed for immunization against Japanese encephalitis should be completed at least 10-14 days before you travel - just in case you have a reaction which may need treatment.

Meningitis vaccine

About 10% of people who have the ACWY vaccine against meningococcal infection soreness and redness at the injection site that lasts 24-48 hours. Mild fever may also occur, more frequently in young children than adults. Severe reactions are extremely rare.

Poliomyelitis

It's common for there to be temporary soreness, redness or swelling at the injection site, usually within 12-24 hours of vaccination. A small, painless lump may also form at the injection site. This usually disappears within a few weeks and is no cause for concern. Severe reactions are extremely rare.

Rabies vaccine

Some people experience temporary soreness, redness and swelling at the injection site for 1-2 days after vaccination. Rarely, some people may experience mild fever, headache, muscle aches, vomiting and rash, although these soon pass without any further problems. Severe reactions are extremely rare.

Tetanus vaccine

It's common for there to be temporary soreness, redness or swelling at the injection site. A small, painless lump may also form at the injection site. This usually disappears within a few weeks and is no cause for concern. Severe reactions are extremely rare.

Tick-borne encephalitis vaccine

Some people experience temporary soreness, redness and swelling at the injection site. Some people may also experience mild fever, tiredness, nausea, itchy rash and headache within 12 hours of vaccination, although these symptoms usually disappear within 24-48 hours. Severe reactions are rare.

Typhoid fever vaccine

Some people experience temporary soreness, redness and swelling at the injection site. About 1% of people experience fever, while less common side effects include abdominal discomfort and constipation, and diarrhea may occur early in the course. Severe reactions are rare.

Yellow fever vaccine

Side effects from yellow fever vaccination can include headache, muscle pain, mild fever and soreness at the injection site. They occur in 10-30% of people who have the vaccination but are usually mild. Reactions at the injection site usually develop one to five days after immunization, but other side effects may last up to two weeks. Very rarely, yellow fever vaccine is associated with neurogical disease. This risk is higher for people who are sixty years or older.