At a glance
Vaccination is a preventive treatment in which a small amount of a weakened, killed, or partial form of a germ is introduced into the body to train the immune system to recognise and fight that germ in the future.
When the vaccine enters the body, the immune system treats it as a threat and builds antibodies (protective proteins) against it. Those antibodies stay in the body, sometimes for years and sometimes for life, so that if the real germ ever arrives, the body can defeat it before serious illness develops.
Medical Condition
Vaccines are given to healthy people to prevent specific infectious diseases, and sometimes to people who are already ill to reduce the severity of certain infections or to stop the spread to others.
- Childhood infections: measles, mumps, rubella, polio, whooping cough, diphtheria, tetanus, and hepatitis B, among others.
- Seasonal or regional threats: influenza (flu), typhoid, cholera, and meningitis (infection of the membranes around the brain).
- Travel-related risks: yellow fever, Japanese encephalitis (a brain infection spread by mosquitoes), and rabies prevention after potential exposure.
- Sexually transmitted infections: human papillomavirus (HPV, the virus linked to cervical cancer) and hepatitis B.
- Older adults: shingles (a painful skin rash caused by the chickenpox virus reactivating) and pneumococcal disease (a serious lung and blood infection).
- Occupational exposure: healthcare workers, laboratory staff, and veterinarians who face a higher risk of certain infections.
- Catch-up immunisation for adults who missed vaccines in childhood.
Vaccination is not suitable for everyone in every situation. A doctor will review each person's health before proceeding.
- People with a known severe allergy to a specific vaccine ingredient may need to avoid that vaccine or receive it under close medical supervision.
- Certain live vaccines (vaccines containing weakened but living germs) are generally avoided during pregnancy.
- People with a severely weakened immune system, such as those undergoing chemotherapy, may not be able to receive live vaccines and may need specialist advice.
- A vaccine may be postponed if a person is currently experiencing a moderate or severe illness with fever.
Risks & Complications
Vaccines are among the most thoroughly tested preventive treatments available, and serious reactions are rare. Most people experience only mild, short-lived effects.
- Pain, redness, or mild swelling at the injection site, lasting one to two days.
- Low-grade fever, tiredness, or a headache for a day or two after the shot.
- Muscle aches or a feeling of having a mild illness, particularly after flu or shingles vaccines.
- Fainting (vasovagal response) shortly after the injection, most common in adolescents and young adults.
- Allergic reaction, ranging from a minor skin rash to, very rarely, anaphylaxis (a sudden, severe whole-body allergic reaction). Clinics keep patients seated for observation after vaccination for this reason.
- For live vaccines in people with severely weakened immunity: a small risk that the vaccine strain itself causes mild infection.
- Specific vaccines carry their own specific rare risks, which your doctor will explain before you receive that vaccine.
Preparation & Procedure
Most vaccines require very little preparation, and fasting is not needed. There are a few straightforward steps to follow in the days and hours beforehand.
Tell the doctor or nurse before the appointment about any allergies, especially to eggs, latex, or previous vaccines; any current illnesses or fever; any medications including blood thinners or immunosuppressants (drugs that reduce immune activity); and if you are pregnant or trying to become pregnant. Alcohol does not need to be stopped before most vaccines, but heavy drinking in the days before can dampen the immune response, so moderate consumption is sensible. Recreational drugs and smoking do not directly interfere with most vaccines, but good general health supports a better immune response.
Some vaccines require a blood test before or after to confirm immunity. Travel vaccines may require proof of previous vaccinations, so bringing your vaccination record book is helpful.
What happens during the appointment itself usually follows these steps, though the exact process varies by vaccine type.
- A nurse or doctor reviews your health history and checks for any reasons the vaccine should be delayed or avoided.
- You are asked about allergies and current medications.
- The injection site (usually the upper arm muscle, or the thigh for young children) is cleaned with an antiseptic wipe.
- The vaccine is given as an injection into the muscle or just under the skin, depending on the vaccine. Some vaccines are given as oral drops or a nasal spray.
- You remain seated and observed for at least 15 minutes to watch for any immediate allergic reaction.
- The nurse records the vaccine name, batch number, and date in your vaccination record.
- You are told what to expect over the next day or two and when to return for any booster doses.
Aftercare
Recovery after vaccination is usually quick, and most people return to normal activities within a day. A few simple steps can ease any discomfort and help the immune response along.
- Stay at the clinic or pharmacy for at least 15 minutes after the injection so staff can respond if a reaction occurs.
- A cool, damp cloth on the injection site can ease soreness and redness. Avoid rubbing the area vigorously.
- Drinking plenty of water and resting for the remainder of the day is usually enough to manage mild fever and tiredness.
- A mild pain reliever can help with soreness or fever; ask the administering nurse or doctor which type is suitable, as some may slightly reduce the immune response in certain vaccines.
- Strenuous exercise on the day of vaccination is generally discouraged, particularly for injectable vaccines into the arm muscle.
- Watch for any signs of a serious reaction, including difficulty breathing, swelling of the face or throat, rapid heartbeat, or dizziness, and seek emergency care immediately if these appear.
- Note the date and vaccine received in your vaccination record, as some vaccines require booster doses (repeat injections given weeks, months, or years later).
- Attend any scheduled follow-up appointments; some vaccines require a blood test after a few weeks to confirm that immunity has developed.
Cost & What Determines It
The cost of vaccination varies widely depending on which vaccine is needed, where it is given, and who is receiving it. A single dose of a common vaccine at a public health centre costs far less than a multi-dose travel vaccine series at a private international clinic.
- Which vaccine is being given: some vaccines are single-dose while others require two, three, or more doses over weeks or months, multiplying the total cost.
- Vaccine type and technology: newer vaccines using advanced production methods (such as mRNA technology) tend to cost more than older, established formulations.
- Hospital or clinic class: private hospitals and international travel clinics charge more than public health centres or government immunisation programmes.
- Country where the vaccine is received: pricing differs significantly between countries due to import costs, licensing fees, and local healthcare pricing structures.
- Consultation fee: many facilities charge a separate doctor or nurse consultation fee on top of the vaccine itself.
- Cold-chain storage and handling: some vaccines require strict refrigeration, and facilities that invest heavily in storage may reflect this in their pricing.
- Certificates or documentation: travel vaccines such as yellow fever require an official vaccination certificate, which may be billed separately.
- Number of people being vaccinated: family or group packages at some clinics reduce the per-person cost.
A clinic package often includes the vaccine dose, the injection itself, and the observation period. Items that are commonly billed separately include the doctor's consultation, the official vaccination certificate, any required blood tests before or after, and booster dose appointments.
BPJS Kesehatan covers certain routine vaccinations within Indonesia's national immunisation programme, but it does not cover most travel vaccines or vaccination received abroad. Most Indonesian private health insurance policies also do not cover vaccination as a preventive service when sought overseas. Patients travelling abroad specifically for vaccination or combining vaccination with a medical trip typically pay out of pocket or rely on private international health insurance that explicitly lists preventive care. Requesting a written cost breakdown from the clinic before travelling is the clearest way to know the full amount in advance and avoid unexpected bills on arrival.
Frequently Asked Questions
Does the vaccine injection hurt?
Most people feel a brief sharp sting at the moment of injection, followed by mild soreness or tenderness at the site for a day or two. Some vaccines cause a little redness or swelling around the spot, which usually fades on its own. A few people also feel tired or get a low-grade fever (a slight rise in body temperature) for a short time, which is a normal sign that the body is responding.
How many sessions do I need and how far apart?
It depends on the specific vaccine, because some give full protection in a single dose while others require two or three doses spaced weeks or months apart. A booster (a follow-up dose given later) may also be needed for certain vaccines to keep protection topped up over time. Your doctor will map out a schedule based on which vaccines you need and whether you have had any doses before.
How soon does the vaccine start working?
Protection usually builds over one to two weeks after the final dose in your schedule, as your immune system (the body's defence system) learns to recognise the threat. For vaccines that need multiple doses, you are not considered fully protected until all doses are completed. Until then, your doctor may advise continuing any other precautions that are relevant to your situation.
How much does vaccination cost?
The cost varies depending on which vaccines you need, how many doses are in the schedule, and the class of clinic or hospital where you receive them. Some vaccine types are more specialised and priced differently from routine ones. Requesting a written estimate from the clinic before your appointment is the most reliable way to know what to expect.
This page is general information, not a substitute for medical advice. Every case is different. Your doctor decides what is right for you.
