What occupations are at increased risk of sporotrichosis?

Sporotrichosis is caused by a dimorphic fungus, Sporothrix schenckii. This organism is found worldwide, except in polar regions, and is most common in subtropical and tropical climates. It is endemic in Africa and Central and South America. In the United States, infection is most common in the Midwest. The normal habitat includes soil, thorny plants (especially roses), hay, sphagnum moss, and animals. Cats may carry Sporothrix on their paws and can cause infection by scratching their owners or animal handlers. A cat-transmitted epidemic was reported in Rio de Janeiro, Brazil. Occupations at risk of cutaneous inoculation include farmers, gardeners (especially rose), florists, masonry workers, Christmas tree farmers, veterinarians, and animal handlers (especially cats, rodents, and armadillos).