Vicarious death: Grief, politics, and identity after the flight PS752 tragedy.

In January 2020, Ukrainian Flight PS752 was shot down shortly after take-off from Tehran's IKA airport, killing all 176 passengers, the majority of whom were headed to Canada via connecting flights. In the aftermath of the tragedy, many among the Iranian diaspora in Canada, ourselves included, were stricken by an unexpectedly deep sense of shock and sorrow, to the point that some experienced what we term as "vicarious death." Drawing on 49 in-depth interviews with the Iranian diaspora in Edmonton, this study explores questions about how being an immigrant, being far from "Home," and being a member of a racialized group might shape and deepen the experience of collective grief and how, conversely, collective grief might influence the meaning of "Home" and bring into question one's ethno-national self-identity.

Down-regulating CD19 surface markers expression correlates with infectious bursal disease virus replication.

The infectious bursal disease virus (IBDV) causes an acute and highly contagious immunosuppressive response in young chickens by targeting B lymphocytes in immune organs. Changes in regulatory T-cell ratio and apoptosis have been demonstrated during IBDV infection in these cells. The possible change in CD19 expression as the precursor of B cells after IBDV replication was detected in this study.