Irena Hwang

Data Reporter

Photo of Irena Hwang

Irena Hwang is a data reporter at ProPublica. She previously worked at NPR, The Associated Press and The Dallas Morning News. She has a master’s degree in journalism and a doctorate in electrical engineering from Stanford University, and studied electrical engineering at the Massachusetts Institute of Technology.

After Pandemic Delays, FDA Still Struggling to Inspect Foreign Drug Manufacturers

In the wake of recent deaths from bacteria-tainted eyedrops, a ProPublica analysis of FDA data reveals that the agency only inspected 6% of the overseas plants where drugs and their ingredients are produced in 2022.

Au bord de la catastrophe

Une simple clairière de forêt nous sépare de la prochaine pandémie mortelle. Mais nous n’essayons même pas de la prévenir.

How Forest Loss Can Unleash the Next Pandemic

The forests around the epicenter of the world’s worst Ebola outbreak are getting patchier. The next pandemic could emerge from the edges around these patches, where wildlife and humans mix.

How We Found That Sites of Previous Ebola Outbreaks Are at Higher Risk Than Before

Research links deforestation to outbreaks. Combining two peer-reviewed models and the latest satellite images of tree loss, we discovered that the sites of five previous outbreaks have a greater chance of facing Ebola again.

On the Edge

The next deadly pandemic is just a forest clearing away. But we’re not even trying to prevent it.

How Not to Count Salmon

Data reporter Irena Hwang thought counting fish to evaluate the hatchery system in the Pacific Northwest sounded like a fun project. That was before she started asking biologists about what the publicly available data could really tell us.

The U.S. Has Spent More Than $2 Billion on a Plan to Save Salmon. The Fish Are Vanishing Anyway.

The U.S. government promised Native tribes in the Pacific Northwest that they could keep fishing as they’d always done. But instead of preserving wild salmon, it propped up a failing system of hatcheries. Now, that system is falling apart.

How ProPublica Used Genomic Sequencing Data to Track an Ongoing Salmonella Outbreak

For a ProPublica reporter who did Ph.D. work in bioinformatics, data on bacterial DNA helped reveal how a once-rare salmonella strain spread through the chicken industry. Salmonella infantis is multidrug-resistant and is still making people sick.

America’s Food Safety System Failed to Stop a Salmonella Epidemic. It’s Still Making People Sick.

For years, a dangerous salmonella strain has sickened thousands and continues to spread through the chicken industry. The USDA knows about it. So do the companies. And yet, contaminated meat continues to be sold to consumers.

In a California Desert, Sheriff’s Deputies Settle Schoolyard Disputes. Black Teens Bear the Brunt.

Deputies in California’s Antelope Valley are disproportionately citing Black teens, often for minor infractions, like getting in fights or smoking. “They’re turning the principal’s office into the police station,” said one lawyer.

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