{"thcode":2,"term":{"code":1280,"name":"viruses","parent":843,"scope":"Very small particles visible only with an electronic microscope. Considered to be complex molecules and not living organisms, these are often causes of disease in plants, animals, and bacteria."},"uf":[],"bt":[{"code":843,"name":"organisms","parent":1174,"scope":"Living individuals that grow, reproduce, and die."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[{"code":1279,"name":"virology","parent":735,"scope":"Branch of biology dealing with viruses and viral diseases."}]}