SAN JUAN, Puerto Rico (AP) — US researchers who estimated that nearly 3,000 people died in Puerto Rico in the aftermath of Hurricane Maria are now investigating deaths that might have been missed and could be linked to infrastructure damaged by the Category 4 storm, officials announced Wednesday.

The Milken Institute of Public Health at George Washington University received a nearly US$1 million contract from the National Institute of Standards and Technology for the investigation. University officials said the project seeks to improve the death certification process and building standards across the US mainland ahead of future storms as part of a collaboration with the University of Puerto Rico and others.

The investigation also aims to identify all direct and indirect deaths linked to building and infrastructure failures in the first two weeks after Maria struck on September 20, 2017, including finding clusters of deaths tied to critical facilities such as hospitals and schools.

Yaritsa Santiago, whose mother died after she was airlifted from Puerto Rico to Miami shortly after Maria struck, praised the upcoming investigation and said she was encouraged that the storm-related deaths will not be in vain. Her mother had been scheduled to undergo an operation for heart problems in October that was indefinitely postponed as a result of the hurricane.

“I think it’s fantastic they’re creating this awareness,” Santiago, who lives in Tampa, said in a phone interview. “A lot of people had to leave Puerto Rico and died elsewhere…Following up is very important to avoid this happening in the future.”

Carlos Santos Burgoa, a professor at the Milken Institute who will lead the project, said in a statement that he hopes it also will help experts quickly and accurately count deaths following a natural disaster.

Puerto Rico’s government at the time came under heavy criticism for severely undercounting the number of deaths related to Hurricane Maria, which destroyed the power grid and caused more than an estimated US$100 billion in damage.

The government later raised the official death toll from 64 to 2,975 following an independent study by George Washington researchers who found that people succumbed in the sweltering aftermath and that doctors were not trained in how to classify deaths after a disaster.