(Viome Photos)Two Seattle-area health and longevity startups are joining forces through Viome Life Science‘s acquisition of Circulate Health. Circulate operates machines providing therapeutic plasma exchange administered by its own specially trained nurses. “We want to build the largest network in the world for plasma exchange to answer questions, to figure things out. Plasma exchange is considered medically effective for conditions including certain cases of multiple sclerosis and leukemia, Guillain-Barre syndrome, sickle cell disease, and organ transplants. We’re going to be doing a trial combining plasma exchange with all the technologies that already exist under the hood at Viome.”