<unk>  is a species of<unk>  and a member of the class oomycota.<unk>  is mainly found in standing water and occasionally soil. Unlike most<unk>  species, which are generally pathogens of terrestrial plants,<unk>  is a pathogen of mammals. It causes pythiosis, mainly in horses, dogs, and humans. It can also cause disease in cats. It is a non-transmissible disease and occurs mainly in tropical climate, endemic to Thailand, affecting mainly humans and horses and in Brazil, affecting mainly horses. Infection can occur in healthy mammals. The pathogen is well-adapted to mammalian body temperature, with an optimum temperature for growth of . The cell walls of<unk>  are composed of β-glucans and cellulose (compared to the chitin walls of fungi), and their cytoplasmic membranes lack sterols, molecules that are targets of antifungals. For this reason, infection caused by<unk>  is difficult to treat.
Pythium insidiosum
Trichophyton rubrum
Paracoccidioides brasiliensis
Mycobacterium orygis
Mycoplasma orale
Trichophyton
Mycoplasma incognitus
Mycoplasma pirum