She died after being detained along with her father by USA border agents in a remote part of New Mexico.
Alonzo was released with prescriptions for ibuprofen and an antibiotic, and taken with his dad, Agustin Gomez, to a holding facility at a highway checkpoint.
During a subsequent welfare check, agents at the facility noticed the child's condition and transported him to the hospital. The visit comes four days after Alonzo's death.
The deaths have triggered finger-pointing between the White House and Democrats over border security, and allegations that the Trump administration is endangering migrant children by detaining them for days in cells meant as temporary way stations for adults.
Felipe Gomez Alonzo, aged 8-years-old died in USA custody at a New Mexico hospital on Christmas Eve. He died later that night at a New Mexico hospital, the second child fatality in us immigration custody in under a month.
The lawmakers gave a January 15 deadline for responses to a number of requests, including "complete accounting and documentation from DHS, CBP and the DHS Office of Inspector General about their investigation into Felipe's death", as well as a briefing on what they discovered. We need help from Congress. But the father of six, like others in the rural farming village of Yalambojoch, decided traveling with a child was the only way out.
The United States has neither the detention space nor the legal authority to hold children long enough to process their parents' claims, so families are typically released from custody to await court hearings that could be months, even years, into the future...
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In response, critics immediately demanded to know why it took at least two deaths in a single month for CBP to order such basic medical examinations-and why young children are being detained in the first place. However, after facing opposition to his initiative, Trump has declared that the federal government would be in a state of partial shutdown until he and the Democrats are able to reach a deal on border security issues.
Trump said, "I can't tell you when the government is going to reopen". My husband called me from Mexico. "It's a barrier from people pouring into our country". Dehydration, septic shock and fever were said to be the likely causes of her death.
Before departing, Caal told agents his daughter was feeling sick and had begun vomiting.
The ministry said CBP alerted Guatemalan officials of the death on Tuesday.
Nielsen said in a statement Wednesday that she had asked the Centers for Disease Control and Prevention to investigate what she says is an "uptick in sick children crossing our borders". This family chose to cross illegally.
New Mexico's Medical Investigator's office said in a statement that nasal and lung swabs during an autopsy found Gomez had influenza B, but said "determining an accurate cause of death requires further evaluation".
Department of Homeland Security (DHS) Secretary Kirstjen Nielsen responded to the death by speaking of the limitations of CBP agents to care for children.
A photograph of Alonzo-Gomez or his family has not yet been released.