After three decades of traversing the rugged canyons of northern Mexico, nurse Julia Paredes is preparing to retire, leaving behind a legacy of immunization and care in one of the country’s most inaccessible regions. For 30 years, Paredes served as a critical link between the public health system and the Rarámuri communities of the Sierra Tarahumara, often traveling by horseback to deliver vaccines where roads did not exist.
Her career began unexpectedly at age 16 in the late 1980s. Living in Batopilas, a remote municipality in the state of Chihuahua, Paredes faced limited educational opportunities. When her family could not afford to send her to high school, she was directed to assist a visiting medical intern. That temporary arrangement evolved into a lifelong vocation recognized by local authorities and the Pan American Health Organization (PAHO).
“When he saw me arrive, the doctor was very happy, given that there was a lot to do,” Paredes recalled of her early days. “He told me he would teach me, because we were going to go out to the communities to vaccinate house by house: one week to vaccinate children, another to vaccinate dogs. And I was also going to be in the consultation.”
Logistics of Life and Death in the Canyons
The Sierra Tarahumara presents formidable logistical challenges for public health initiatives. The region features canyons reaching depths of 1,800 meters and extreme climate variations. Maintaining the cold chain for vaccines—a requirement for efficacy—proved difficult in temperatures soaring to 40° C (104° F).
In the early 1990s, Paredes and a small team would depart at 4 a.m. On horseback, carrying thermos containers to protect roughly 20 doses of vaccines for measles, smallpox, and mumps. The journeys to communities like Loreto could take up to 12 hours. At the time, vaccination coverage in the region was estimated to be as low as 5%, partly because the national program had only launched in 1986 and the semi-nomadic Rarámuri population was difficult to census.
The stakes of these missions were often life or death. Paredes witnessed a severe measles outbreak that devastated the community of Loreto. She described a scene of profound grief, with mothers wearing black headscarves and mass graves being dug.
“It was my first contact with death. I was only 16 years old and it was something desolating… I saw that in a grave they buried 11 Tarahumaras. It was something that marked me for the worse,” Paredes said.
Despite the trauma, the experience solidified her resolve. She noted that as she continued to return to the community, the incidence of the disease decreased, validating the efficacy of the immunization campaigns.
Building Trust Across Cultural Divides
Beyond the physical terrain, Paredes had to navigate cultural barriers. The Rarámuri, known for their long-distance running capabilities and traditional autonomy, often viewed chabochi (outsiders) with suspicion. Traditional healing methods were preferred over Western medicine initially.
Paredes emphasized that respect was the primary tool for gaining access. She learned to dress in clothing similar to the locals and prioritized listening over prescribing. Over time, skepticism turned to demand as communities observed that vaccinated families remained healthy although others fell ill.
“Definitely to live and work in the sierra… The first thing we have to do is love them, respect them,” she stated. “Respect their beliefs, respect their idiosyncrasy, respect their worldview. And then comes the vocation.”
Critical Care Beyond Vaccination
While vaccination was a primary focus, Paredes often acted as the sole medical provider for vast areas. In one notable instance, she treated a patient named Juan in the locality of La Sombra, who had been bitten on the face by a skunk, a vector for rabies.
With the patient showing signs of fever three days post-bite, the prognosis was grim. Paredes secured a separate house for his isolation and administered treatment, invoking both faith and science.
“I said, ‘Only God and Louis Pasteur… Can save him. I can’t do more,'” she recalled. The treatment was successful; Juan recovered his appetite and survived the potential infection. Paredes also frequently administered antivenoms for scorpion and spider bites, relying on symptom identification to select the correct antidote in the absence of advanced diagnostic tools.
A Changing Landscape and New Challenges
By the late 1990s, Paredes transitioned from a field worker to a guide, helping open health routes across Chihuahua, a state roughly the size of the United Kingdom. However, the physical toll of the terrain led her to relocate to Chihuahua City in the 2000s, where she focused on epidemiological surveillance.
Her retirement comes at a complex time for public health. Paredes noted that the gains made in vaccination coverage faced setbacks during the COVID-19 pandemic. She observed a rise in vaccine hesitancy driven by misinformation.
“Young parents bring ‘their truth’ on a cell phone, on Wikipedia. And let’s remember that does not have a scientific basis,” Paredes explained. She cited instances where parents refused measles vaccines due to online claims about blindness, a stark contrast to the preventable deaths she witnessed in the 1990s.
As she concludes her career, Paredes expressed pride in the lives saved and the trust earned. “The most beautiful thing was to see that many lives were saved… To manage to work with them, not just reach them, but reach their mind, their heart and their soul,” she said.
Health officials in Chihuahua continue to monitor vaccination rates as the state manages recent measles outbreaks. For more information on vaccination schedules and public health initiatives in the region, residents are encouraged to consult the Mexican Ministry of Health or the Pan American Health Organization.
Paredes’ departure marks the end of an era for the Batopilas health sector, but her methodology of community-integrated care remains a benchmark for rural health workers in Mexico.
Have you worked in rural healthcare or have a story about community health initiatives? Share your experiences in the comments below.
