https://apnews.com/5b6b0ab5da7c3d6527bf532e77604edb > DESOTO, Kan. (AP) — Merck Animal Health said Monday it plans to invest $100 million to expand and enhance its manufacturing facility in DeSoto, Kansas. > The company, a division of Merck & Co. based in Kenilworth, New Jersey, said in a news release that it plans a technology expansion of its vaccine production facility this year plus an additional $66 million investment in the coming years.