Undetectable is a story of love, loss, and viral loads, a memoir of long-term survival with HIV. From New York graduate student in 1989, who contracts the virus from the love of his life to Montana writer in 2018 visiting the slums of Nairobi, the author finds his own drama intertwined with the astonishing stories of his HIV+ peers, narratives that intersect the path of his travails and act as foils to the foibles of a gay man who comes out, falls in love, and faces a death sentence at the beginning of his career. In his fight for drugs, friends, and support, Charles learns the power of linking self to other as he confronts stigma, heartbreak, and fear with a visceral resilience. By discovering the power of community, Undetectable explores a generation of long-term HIV survivors who have lived to tell the story of an AIDS pandemic now in its fifth decade without cure or vaccine.