The road from tropical Central America, from the jungle to the huge Mexican capital, and then into the desert leading to the United States, reduces the health of the overcrowded migrant trailer, which is experiencing extreme climate change as well as overcrowding and physical exhaustion.
On Sunday morning, nearly 5,000 average Americans, mostly Honduras, went back to their American dream booths, pushing a trolley with children who were sleeping and pulling heavy blankets with which they stood on a cold night at the stadium's corridors Corregidora from central Querétaro.
But as soon as they reached the point where the road to neighbor Guanajuato begins, the signs of the first deterioration appeared among the weaker members of this human body.
The teenage girl disappeared on the roadside.
"It takes days with fever," said one of the young people who accompanied it before reaching it.
A few meters ahead, a 4-year-old Honduran girl collapsed on the floor, saying she had forever built an eternal line to get on with her mother, Mirna Carolina Ayala.
"I do not know what you have, you did not want to eat during the day … if something happens, I'm going to die," the woman said between the cords to AFP, while the paramedics supplied the oxygen to the node.
"It's dehydrated, not well-eaten," said local health secretary Emergency Liaison Officer Luis Manuels Martine.
When she regained consciousness, the girl was taken to the emergency room at the hospital. His cry of pain aroused a good part of the trailer's side.
As a rule, the caravan arrives in a "degraded state".
"They come from a hot climate and here the temperature gets lower, more wear, people are not used to walking, eating and falling asleep these days," says Martínez.
For the doctor, the most urgent risks are respiratory and gastrointestinal infections.
"We have discovered inflammation of the flu and tuberculosis infection," said the Red Cross doctor who requested anonymity and spent the night in the shelter.
In the dawn of a crowded stadium camp hit by a strong ice stream, they smirk of stinking smirks of funny sympathy and coughing.
"Most of us were affected by coughing, flu, exaggerated climate, in a very cold condition, I can not stand it," said José Castellano, a 20-year-old Honduran who left the medical camp with hands that contained medications.
The spread of viruses and bacteria often occurs.
"If you do not take your boat with water, you have to take it from your partner," explained a young man who was trembling under two trousers and a double jacket you saw.
Castellano understands that every passing day is closer to the winter, reaching zero temperatures at the northern border.
"You have to be prepared to make sure you do not miss us with hypothermia," he said.
Waste and little toilets
According to the World Health Organization, tuberculosis affects the lungs, causing cough, fever, night sweats and weight loss.
Although it is curable, if treated immediately, it is spread by coughing, squealing, or squeezing, for example, flu.
These diseases can develop as a result of an epidemic, cause pneumonia or death.
Migrants lie in the open field, creating a huge hair or multicolored mosaic. Consequently, there are always mobile toilets that sometimes overflow, as well as dirt and debris that create it.
Ten lounges lent to the stadium, "five for men and five for women (…) and we are crowds," denied Honduran electrician Julio Díaz, who cured his baby to prevent eye infections.
"The problem is that some of us going here are smart, but others are very dirty, they have no education, pigs!" He said, clutching the plastic bag with medicine.
The labyrinthine corridors of the camp loudly shake headaches, bones, legs, shoulders, genitals, stomach, chest. There is also a pain in the soul.
"What hurts me is a heart, I lost everything I liked in my country," says Araceli López, one mother who silenced her daughter with a special lace comb.
"Children are always silent and playing, so they were all filled with pips," she explains, when her nails grind one of the parasites.