The situation is dire across much of the island but even more so for its most vulnerable, low-income minority communities.
Only about half the territory’s residents had access to potable drinking water, and electricity had been restored to just 5 percent of Puerto Rico as of Tuesday, when President Donald Trump visited the capital, San Juan, according to the Federal Emergency Management Agency.
The community is plagued by untreated sewage that flows into the adjacent Martín Peña Channel.
"People are drinking whatever comes from the faucet, and it’s turbid," said Lyvia Rodríguez del Valle, executive director of the Caño Martín Peña Land Trust Project Corporation, a public-private partnership working with the community. "People lost their roofs.
"We have barely seen the government here," Rodríguez del Valle said.
"I’m concerned about typhoid, paratyphoid and shigella [bacterial diseases that can spread through non-potable water] on the diarrheal side and the vector-borne diseases, especially dengue, because we have dengue in Puerto Rico every year anyway," Hotez said.
"I don’t know why were are not getting the kinds of things that are basic necessities 13 days out from Hurricane Maria," Santiago said.
Marcella Chiapperino lost her home and business in Frederiksted, St. Croix, in the U.S. Virgin Islands, to Hurricane Maria after both had been battered by Hurricane Irma two weeks before.