

Introduction
The yellow fever vaccine is one of the most important vaccines worldwide, not only for preventing a viral disease transmitted by mosquitoes but also because in many countries it is an essential requirement for international travel. In this article, we explain what type of vaccine it is, how long it lasts, who should get it, possible side effects, contraindications, what to do if you lose your certificate, and other frequently asked questions.
What is the yellow fever vaccine and what type of vaccine is it?
The yellow fever vaccine is a live attenuated virus vaccine, administered as a single subcutaneous dose. It is highly effective and considered safe for most people by the World Health Organization (WHO).
How long does protection last?
A single dose provides lifelong protection for most individuals. However, some countries still require a booster every 10 years as an entry requirement, so it is always advisable to verify the regulations of your travel destination.
When should you get vaccinated?
The vaccine should be administered at least 10 days before traveling to regions where the certificate is required, since this is the time needed for it to be internationally valid.
- It is primarily recommended for people traveling to regions with active transmission, such as sub-Saharan Africa and tropical areas of South America (Brazil, Bolivia, Colombia, Peru, Venezuela, Ecuador).
Importance of the yellow fever vaccine in tourism and travel
Many countries require proof of this vaccine for entry. Even a layover longer than 12 hours in an endemic country may trigger the requirement. Planning ahead is crucial to avoid issues at border control or airports.
International Certificate of Vaccination or Prophylaxis (ICVP)
The official proof of vaccination is the International Certificate of Vaccination or Prophylaxis (ICVP), commonly known as the “yellow card.” This document follows WHO standards and is the only globally recognized proof of yellow fever vaccination. It includes:
- Traveler’s personal details.
- Vaccine information (name, manufacturer, batch number, date of administration).
- Signature and official stamp of an authorized vaccination center.
- Validity: starts 10 days after vaccination and, according to WHO, lasts for life.
- Note: Some countries still require a booster every 10 years, despite WHO recommendations.
Side effects of the yellow fever vaccine
As with any vaccine, there may be mild and temporary side effects, such as:
- Pain at the injection site.
- Headache.
- Mild fever.
- Muscle aches.
- General malaise.
These symptoms usually resolve within a few days without treatment.
Contraindications of the yellow fever vaccine
Not everyone can receive this vaccine. It is contraindicated in:
- Infants under 9 months of age.
- Pregnant women (except in high-risk situations).
- People with severe egg allergies.
- Immunocompromised patients (transplants, chemotherapy, advanced HIV infection).
What if I can’t get vaccinated but need to travel?
In cases of medical contraindication, a medical waiver certificate can be issued, signed and stamped by an authorized physician. However, not all countries accept these waivers, and entry may still be denied or quarantine imposed.
What if I lost my vaccination certificate?
If you already received the vaccine but lost your yellow card, you should return to the same authorized center where it was administered. They keep records of your vaccination and can issue a new certificate without repeating the dose. If no record exists, a new dose may be required to obtain a valid certificate.
Availability of the yellow fever vaccine with Doctor At Home Mexico
We currently offer medical services in 18 cities. If the name of your city appears as a link, it means the yellow fever vaccine is available in your area. If your city does not appear linked, it means we do not yet provide this service there.
- Puerto Vallarta
- Cabo San Lucas
- San José del Cabo
- Mazatlán
- Culiacán
- Guadalajara
- Chapala
- Morelia
- San Luis Potosí
- Cuernavaca
- Mexico City
- State of Mexico
- Puebla
- Mérida
- Cozumel
- Playa del Carmen
- Cancún
- Monterrey
Conclusion
The yellow fever vaccine not only protects your health but is also a key requirement for traveling to many countries. Having a valid International Certificate of Vaccination will save you from complications at airports and border controls. At Doctor At Home Mexico, we can guide you on the availability of this vaccine in your city and help you prepare for your next trip.
👉 Book your vaccination today and travel with peace of mind.