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spirochetosis affecting harvest workers, due to Leptospira interrogans serogroup grippotyphosa, with fever, diarrhea, conjunctivitis, stupor, and vomiting.
pertaining to or emanating from grain or cereal crops or the harvesting of them.
a disease of humans caused by Leptospira spp.
are pests of grain and hay where they are predators on arthropods. The larvae ordinarily parasitize rodents but can infest other animals including humans. The infections are self-limiting but can cause dermatitis of the face and the lower limbs. The lesions are itchy, small scabs, which cause rubbing and stamping of the feet. In pigs the lesions are distributed over most of the body. Called also chigger mites, grain mites, Pyemotes ventricosus, Neotrombicula autumnalis, Eutrombicula alfreddugesi, E. splendens, E. batatas, Lepotrombidium spp., Schoengastia spp.