The Brazilian Interdisciplinary AIDS Association (ABIA) expresses our deep sentiment of grief with the lives lost in the tragedy of flight MH17 of Malaysian Airlines over Ukraine yesterday, when a large number of AIDS researchers, activists and workers died. We send our condolences to their families and institutions. Furthermore, if it is definitively confirmed that the aircraft was attacked by a missile, we want to also express our deep concern with the spread and escalation of geopolitically motivated localized conflicts, such as the one current underway in the Ukraine-Russia border area.