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Stories by Stephanie Pappas

Texas Explosion Echoes Worst Industrial Accident Ever

The West, Texas, fertilizer plant explosion on April 17 echoes an April 16, 1947, event when a ship loaded with ammonium nitrate, also a chemical fertilizer, docked at the Port of Texas City erupted in flames and exploded, killing nearly 600 people...

April 18, 2013 — Stephanie Pappas and LiveScience

Circumcision Alters Penis Bacteria

Microbiome changes might explain how circumcision reduces HIV risk, possibly by eliminating bacteria that activate immune cells in the skin that themselves present the retrovirus to the immune system, making infection more likely...

April 16, 2013 — Stephanie Pappas and LiveScience

Introducing Scientific American Health & Medicine

Introducing Scientific American Health & Medicine