India, July 14 -- Richard Dreyfuss will not be attending SharkCon this year due to health-related reasons. The 77-year-old actor, best known for his role in Jaws, shared a health update in a video posted to SharkCon's Instagram over the weekend.

"Hello fellow cons," Dreyfuss said in the clip, speaking from a hospital bed with a Jaws-themed blanket pulled over him. "I am very, very sorry to tell you that I've been diagnosed with, viral, er. What is it?"

"Bronchitis," his wife Svetlana Erokhin answered from off-camera.

Bronchitis happens when the airways in the lungs get inflamed and filled with mucus. It can cause symptoms like fever, fatigue, shortness of breath, and a runny nose.

Dreyfuss went on to explain, "I've been told by my doc...