It is with great sadness that I received news this morning of the passing yesterday of our dear colleague and friend Ralph Grassmann. Ralph has been a valued member of our Retrovirology editorial board, and we plan to remember more about Ralph in Retrovirology in the coming days. A short piece about Ralph and his research interests can be read at the following link:https://htlv-tax.com/biosketchTax_webpage07RG.docWe will miss Ralph for his science and his friendship! Please see a picture of Ralph taken in 2004 below.