The test relies on the agglutination of horse erythrocytes by heterophile antibodies in patient serum. It is done by serological methods like latex agglutination or slide agglutination. The antigens and antibodies combine by a process called agglutination. The papain-digested antibody is unable to promote agglutination, precipitation, opsonization, and lysis. ELISA and microscopic agglutination tests are most commonly used to diagnose leptospirosis in animals. It is a relatively uncommon phenomenon caused by in vitro agglutination of platelets. The scheme classifies the serovar depending on its antigen formula obtained via the agglutination reactions. It appears to alter adenosine diphosphate (ADP)-mediated agglutination of platelets. An agglutinative language is a type of synthetic language with morphology that primarily uses agglutination. Languages that use agglutination widely are called agglutinative languages. Nahuan languages exhibit a complex morphology characterized by polysynthesis and agglutination. Other rapid screening tests have been developed such as dipsticks, latex and slide agglutination tests. Verb morphology is synthetic and has elements of both fusion and agglutination. ELISA, immunoturbidimetry, nephelometry, rapid immunodiffusion, and visual agglutination are all methods used to measure CRP. The Uralic languages are agglutinative, following from the agglutination in Proto-Uralic.