title: Speculation, stringent reasoning, and science.
authors: Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
authors: L
authors: L
authors: Chapman
mesh_terms: D000818:Animals; D006291:Health Policy; D006801:Humans; D011323:Primates; D014183:Transplantation, Heterologous; D014481:United States; D015047:Zoonoses / Q000635:transmission*