Updated at 6:05 p.m. ET
On Fox News and other media outlets, guests have said the migrant caravan walking to the United States could bring dangerous diseases like leprosy, tuberculosis and smallpox.
Health authorities in Mexico City, where thousands of migrants are now camped, have found no evidence of leprosy or TB. And smallpox was globally eradicated in 1980. But there are health issues, to be sure.
"We're mostly seeing people with respiratory infections and problems in the GI tract, like diarrhea," says Ruben Rodriguez Romero, the Mexico City coordinator for the Mexican Red Cross. The polluted air of Mexico City could be responsible for some of the respiratory infections.
Stomach problems mostly originate from lack of sanitation available to the migrants as they travel.
Kelly Zelaya, a 31-year-old Honduran, says she's been struggling to breathe normally, which is particularly difficult on days when she walked as many as 25 miles in 90-degree-plus weather.
"I've had a really bad cough and flu symptoms," Zelaya says. "I just couldn't keep walking some days because I couldn't breathe."
Nearly three weeks later, after taxing treks, sporadic meals and sleeping outdoors, she finally saw a doctor in Mexico City, who diagnosed her with bronchitis and symptoms of asthma, something she had never suffered from before.
Ragged from weeks traveling on foot, Zelaya is one of nearly 5,000 Central Americans who have found rest and a slew of medical services at a stadium in Mexico City in early November before they continue their journey north toward the United States.
City authorities have set up massive tents on the field and handed out blankets and sleeping pads so the migrants can camp out.
As the sun beats down, migrants line up at various tents for treatment. Inside a Mexican Red Cross ambulance, an EMT cleans off the cracked, swollen, bloody big toe of a migrant who has come this whole way in a off-brand version of Crocs. The patient cringes as the EMT sprays more disinfectant on the toe and continues to scrape away the dried blood. Once the cleaning is done and the toe is bandaged up, they tell him to go see the city's mobile pharmacy for antibiotics. They worry his toe might have an infection.
The Mexican Red Cross, with a rotating staff of 30 doctors and EMTs, is one of many organizations providing aid for the migrants in Mexico City. While aid to the caravan was fractured and sporadic as they made their way through southern Mexico, the capital's government coordinated with dozens of non-profits for what they're calling the "Humanitarian Bridge."
Mexico City's health ministry has deployed 51 doctors, 14 epidemiologists, 37 nurses, 14 psychologists, and 12 dentists to provide free care. It set up mobile consultation rooms, mobile dental clinics and a mobile pharmacy at the stadium where the migrants are resting.
As of November 8, the government's tally is: 1,380 doctor visits, 1,295 flu shots, 275 tetanus and diphtheria shots. Nonprofits have given hundreds more consultations.
Echoing the Red Cross, a health ministry spokesperson says the most common illnesses treated have are respiratory infections, fungal infections, conjunctivitis, and lacerations to the foot.
"We just got [flu] shots, we got some medicine for headache and body aches, something for the cough," says Jorge Luis Sanchez, a 23-year-old Honduran, as his girlfriend coughs into his shoulder.
"Mexico City has been really different from the rest of the country, better care, better and more food, there's medicine, it's more orderly," he says. He hopes the shots will prevent them from catching the flu again since he has seen lots of people in the caravan with symptoms.
Over in a corner of shade left by the stadium is a familiar face for the migrant caravan: Sister Bertha Lopez Chavez from the Missionaries of the Risen Christ order. Her group of nuns and priests began working with neglected AIDS patients in Mexico in the 90s and has recently focused attention on migrants. They've been traveling with the caravan since Guatemala and are one of roughly 50 nonprofits providing aid to the migrants during their pit stop in Mexico City.
Marcos Darío, a 20-year-old Honduran who has nearly lost his voice, steps forward in line and tells Sister Bertha his symptoms.
"I'm dehydrated, I've got a cough, I think I have a fever, I've got a headache, my body aches, my feet hurt," he manages to say before his cough kicks in again.
"Drink all of this," she says through a medical mask, handing him a glass of rehydration solution. He gulps it down. "Now drink another glass. I want you to drink as much water as you can stomach and take this." She hands him ibuprofen. "And then go over to the doctor's tent as ask him if you have an infection. You may need antibiotics."
For the vast majority of patients, the goal here in Mexico City is to get well enough to keep up with the caravan's grueling journey.
"We've tended to thousands and thousands of people at this point," says Sister Bertha. "We're just trying to deal with their basic needs so they can continue on."
But for many, especially those with young children, the health impacts of the journey have been too much.
"Both the babies got fevers, one around 102 degrees," says Evelyn Perdomo, 30, a Honduran woman traveling with her mother, younger sister, her three children, and a niece. "The caravan was leaving at 3 a.m. and we were still in the hospital. We just couldn't keep going."
While both of the babies have since recovered, Perdomo and her family split from the caravan and are now in a migrant shelter in the State of Mexico, resting and deciding what to do next.
Physical health isn't the only challenge, says Marlen Nava Miranda, apsychologist and the director of the Mexican Institute for Emergency Psychology, a nonprofit group working at the stadium in the capital.
"These people are all suffering losses: loss of their country, their culture, family, maybe children," she says. "They are wracked with fear, guilt, uncertainty and anxiety."
Nava says many patients they have spoken with are grappling with trauma that made them leave their country. She also says many parents are asking for help for their children who are emotionally struggling.
"Kids are suffering from attachment anxiety," says Nava. "If they lose sight of their parent or family member for just a moment, they panic and think they've been abandoned. A lot are suffering from nightmares and aren't sleeping."
But there's only so much psychological support that can be given in the few days the caravan rests in Mexico City, with hundreds of miles remaining to the border.
"What we're trying to do is give support and stability, to help lower stress and anxiety levels so they can be functional and make clear decisions," says Nava.
But whether they're suffering mental or physical problems, migrants here are largely determined to keep moving north towards the U.S.
"I'm just trying to rest up to continue to the U.S.," says Marcos Dario through his hoarse throat.
"I'm even more motivated [to reach the U.S.] after what I've been through," says Kelly Zelaya, who's suffering from bronchitis. "God will help keep us healthy."
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