The Cluster: New Brunswick's mysterious illness

Nearly 50 people in New Brunswick are sick, showing symptoms of a neurological disease, and no one seems quite sure what it is or how they got it.

But this much they know: Nine people have died and those who've been diagnosed with the mysterious illness are anxious for answers that could help them survive.

• Keep up to date withCBC's coverage of mysteryneurologicaldiseasein N.B.

The Fifth Estate investigates what is known about the cases, the doctor who diagnosed them and why the New Brunswick government might beplaying down fears of a cluster. Watch the documentary on Thursday at 9 p.m. on CBC-TV and on Gem.

Listen to additional coverage of N.B. mystery illness on Shift NB:

• Stream past episodes of The Fifth Estate onCBC Gem