Whether schizoaffective disorder is a variant of schizophrenia (as in DSM-5 and ICD-10 classification systems), a variant of bipolar disorder, or part of a dimensional continuum between psychotic depression, bipolar disorders and schizophrenia is currently being investigated.More recently, some research suggests the need for a more specialized classification for schizoaffective disorder. In a 2017 examining diagnostic heterogeneity study, researchers found that when compared to a schizophrenia sample, individuals with schizoaffective disorder rate higher in suicidality and anxiety disorder comorbidity. References
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The incubation period for the bacteria generally lasts from three-ten days. As the disease progresses. almost half the patients experience migratory polyarthralgias. Mechanism
Although the specific form of pathogenesis is still a subject of ongoing research, the bacteria has been observed to result in morphological symptoms that are atypical of bacterial infection. Autopsy of the victims vividly exhibit erythrophagocytosis, hepatosplenomegaly, interstitial pneumonia, and lymph node sinus hyperplasia. In addition, Myocarditis and Endocarditis have also been demonstrated in such patients. Synovial and serosal surfaces may be more suited for the growth of the bacteria within the body. Furthermore, leukocytoclastic vasculitis has been observed in the skin lesions. Diagnosis
The microaerophilic conditions needed for the bacteria to grow, makes its detection incredibly difficult. Trypticase soy agar or broth enriched with 20% blood, serum, or ascitic fluid is necessary for the optimal growth of the bacteria under laboratory conditions. The organism may take up to seven days to grow and the colonies generally have a circular, grayish and shiny appearance on agar. Once the microbe has grown, primary identification can be carried out via biochemical and carbohydrate fermentation analysis. Biochemical tests such as oxidase, catalase, indole, and nitrate can be used to detect the bacteria. However, S. moniliformis can be biochemically differentiated from similar bacteria by their negative production of indole, catalase, and oxidase, while reduction of nitrate to nitrite. PCR assay specific for Streptobacillus moniliformis can also be used to detect the bacteria in a patient sample with high accuracy.