This vicarious or secondary traumatic stress is relatively rare, but "we've all identified it, " he said.

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"There is a second territory ... and that is secondary traumatic stress injury, " says Shay, the author of Odysseus in America and Achilles in Vietnam.

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The symptoms of vicarious trauma, also called secondary traumatic stress, parallel those of direct trauma, said Laurie Anne Pearlman, former president of the Trauma Research, Education, and Training Institute Inc. and author of several books about vicarious trauma.

CNN: Treating trauma victims may cause its own trauma

Despite the considerable strengthening of capital positions compared to the levels of 2008-2009, European banks have recently experienced market funding difficulties resulting amongst others from stress on wholesale liquidity markets, high spreads in secondary markets, and, for some EU banks, growing difficulties in accessing funding from U.S. counterparties.

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