Doctors from around the world scrubbing in to the fight against AIDS.

NYC Health and Hospitals/Elmhurst marking World AIDS Day with a global health summit.

Doctors from Ethiopia and Russia video conferencing with practitioners in Queens to talk about the battle in their own countries and how it relates to treating patients here at home. 

"To see what we have in common with them in terms of strategies, in terms of struggles, in terms of what the future holds, I think all of that is important," said Dr. Joseph Masci.

The conference was also the launch of the hospital’s new Global Health Institute.

The institute plans to hold a climate change conference in the next few months.