41. Antigenically related serovars are grouped into 24 serogroups, which are identified using the microscopic agglutination test ( MAT ). 42. Pneumococcal antigen detection in pleural fluid samples by latex agglutination can also be useful for rapid diagnosis of pneumococcal empyema. 43. Clinical diagnosis of " H . influenzae " is typically performed by bacterial culture or latex particle agglutinations . 44. In a study including 75 patients with brucellosis, five patients with positive ELISA had a negative tube agglutination test. 45. The "'Weil Felix test "'is an agglutination test for the diagnosis of rickettsial infections. 46. "' Gravindex "'is an agglutination inhibition test performed on a urine sample to detect pregnancy. 47. Crossmatching using saline agglutination does run the risk of false negatives, since some alloantibodies only produce lysis rather than agglutination. 48. Crossmatching using saline agglutination does run the risk of false negatives, since some alloantibodies only produce lysis rather than agglutination . 49. Agglutination is a typological feature and does not imply a linguistic relation, but there are some families of agglutinative languages.50. Uyghur exhibits the agglutination characteristic to the Turkic family, and its basic word order is subject-object-verb.
