If I had to name an infection that gives people nightmares, besides COVID as of the time of writing this, would be Mucormycosis. These are moulds of the order Mucorales, which are comprised of multiple species, including Rhizopus spp, Mucor spp, and Lichtheimia spp (formerly of the genera Absidia and Mycocladus). Others include Rhizomucor spp,
Dr. Germophile 