We now know of six children who died after spending time in government custody in the last eight months. Advocates and politicians have raised the alarm that there could be more.
The government is keeping children in rudimentary detention facilities for extended periods of time, in the care of agents who are not trained to recognize when children are ill.
Research has found that migrants and refugees don't spread diseases to host populations, though migrants themselves are often at higher risk of illness because of poor living conditions.
Now that Trump has ousted officials who opposed a shock-and-awe arrest campaign, funding limitations may present the most serious barrier to such a plan.