As Mexico continues to grapple with a measles outbreak that began in 2025, many citizens are seeking information on how to access their vaccination records. The Cartilla Nacional de Vacunación, or National Vaccination Card, serves as official documentation of doses administered, including the crucial triple viral vaccine protecting against measles, rubella and mumps. With increased concern and public health advisories, accessing or replacing this card has become a priority for many.
The process of obtaining a replacement Cartilla Nacional de Vacunación can be completed either in person at a health center or online. Still, recent reports indicate intermittent issues with the digital system, leaving some users unable to complete the online process. This has prompted a demand for clear guidance on navigating both options.
The Cartilla is more than just a record. it’s a vital tool for tracking immunization status, particularly essential during outbreaks like the current measles surge. While vaccination is strongly encouraged, individuals unsure of their vaccination history can still receive immunizations, even without the physical card. However, having the Cartilla streamlines the process and ensures accurate record-keeping.
Recovering Your Vaccination Card Online
The primary method for obtaining a digital copy of your Cartilla Nacional de Vacunación is through the website of the Instituto Mexicano del Seguro Social (IMSS) or via the IMSS Digital application. The process involves several straightforward steps:
- Access the IMSS website at https://serviciosdigitales.imss.gob.mx/gestionAsegurados-web-externo/cartilla or open the IMSS Digital app.
- Select the option for reprinting your National Health Card (reimpresión de Cartilla Nacional de Salud).
- Enter your CURP (Unique Population Registry Code), Social Security Number (Número de Seguridad Social – NSS), and a valid email address.
- Complete the security captcha.
- A PDF file containing your Cartilla will be sent to the provided email address.
However, users have recently reported difficulties with this online process. Testing by UnoTV revealed that the system was functioning correctly in only one out of five attempts, with many encountering errors or being unable to download the document. As of February 18, 2026, the cause of these disruptions remains unknown.
What to Do If the Online System Isn’t Working
If you are unable to retrieve your Cartilla Nacional de Vacunación online due to technical issues, you can visit your local Unidad de Medicina Familiar (Family Medicine Unit) in person. To expedite the process, bring the following documents:
- Official identification
- CURP
- Social Security Number
- For minors, a birth certificate and identification for the parent or guardian
The replacement Cartilla is provided free of charge.
It’s important to remember that while the Cartilla Nacional de Vacunación is helpful for tracking immunization records, it is not strictly required to receive a vaccine. Individuals unsure of their vaccination status can still be vaccinated. However, having the card facilitates accurate record-keeping and follow-up care.
As Mexico’s health authorities continue to address the ongoing measles outbreak, staying informed about vaccination status and accessing necessary documentation remains crucial. The IMSS is expected to address the reported issues with the online system, and updates will be provided as they become available.
Disclaimer: This article provides information for general knowledge and informational purposes only, and does not constitute medical advice. It is essential to consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.
Have you experienced issues accessing your Cartilla Nacional de Vacunación online? Share your experiences and questions in the comments below.
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