| Year | Event | |||
| 2370 |
● [1]
Barclay becomes the first sufferer of Barclay's Protomorphosis Syndrome. A treatment developed by Beverly Crusher creates the disease, which causes most of the Enterprise-D crew to mutate to animal forms. [1]
|
| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 7 | Genesis |
| Series : | TNG Season 7 |
| Episode : | Genesis |
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