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(WBIR) The third American patient being treated for Ebola used to work in the Tri-Cities, according to our NBC-affiliate WCYB.

The station reports that Dr. Rick Sacra was a resident at ETSU Family Physicians of Bristol during the early 1990s.

WCYB said its learned Sacra spent most of his residency and medical school training in another state.

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He is from Boston and was treating pregnant women in Liberia while serving as a missionary doctor with North Carolina based SIM USA. However, he was not treating Ebola patients and the group said its unknown how he got infected.

According to WCYB, the group's president said there have been no communications with Emory Hospital, which treated two other missionaries when they contracted Ebola.

Dr. Sacra is said to be in good spirits and going well.

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