Pittsburgh Marathon by Justin Merriman

Runners are blurred by a slow camera shutter speed as they begin the 2015 Dick's Sporting Goods Pittsburgh Marathon on Sunday, May 3, 2015.
Runners await the start of the 2015 Dick's Sporting Goods Pittsburgh Marathon
 Hand cyclists at the start of the 2015 Dick's Sporting Goods Pittsburgh Marathon.
 Stephen Njoroge of Kenya approaches the finish line.
 A runner cools off in the mist of an open fire hydrant.
Emergency personnel rush a 25-year-old runner who collapsed just shy of the finish line after suffering cardiac arrest.  The medics performed CPR and used a defibrillator to restart his heart.
Clara Santucci of Dilliner, Green County, won the Pittsburgh Marathon women's race for the second straight year.
 Stephen Njoroge of Kenya wins the Pittsburgh marathon men's race.
Stephen Njoroge of Kenya, wrapped in the Kenyan flag, walks away from the finish line after winning the 2015 Dick's Sporting Goods Pittsburgh Marathon on Sunday, May 3, 2015.

60th Anniversary of the Salk Polio Vaccine by Justin Merriman

This month, the world marked the 60th anniversary of Jonas Salk's polio vaccine. Ten years ago I traveled to India on assignment for the Pittsburgh Tribune-Review to document what was believed to be India's final efforts to eradicate the disease. Unfortunately, it wasn't. It took the country another eight years to finally be considered polio-free by the World Health Organization. This is a collection of some of my images from that trip in 2005. 

To read 'An Unfinished Miracle,' the reporting by my colleagues, Jennifer Bails and Luis Fábregas visit the Pittsburgh Tribune-Review. 

Shattared by Justin Merriman

A woman walks past a shattered window of the GNC store along Walnut Street in Shadyside on Sunday afternoon, April 12, 2015.  The window was one of many damaged by vandals on Friday night.

"Promise" by Justin Merriman

Natalia Backos, 7, of Greensburg, sits with "Promise" a veteran grand champion standard schnauzer, that she showed at the Western Pennsylvania Kennel Association dog show at the Monroeville Convention Center, on Sunday, April 5, 2015.

The Day's End by Justin Merriman

Andy Lydon, 30, of Butler, is reflected in a pond, as he walks his dog, Zoey, across the Butler County Community College's campus as the sun sets on April 1, 2015.