erythrocyte sedimentation rate was 30mm. Antinuclear antibodies, rheumatoid factor, and serological tests for cytomegalovirus, herpes simplex virus types 1 and 2, hepatitis B and C viruses, human immunodeficiency virus (HIV), Toxoplasma gondii, Bartonella henselae, Salmonella typhi, Brucella, Leptospira, and Francisella tularensis were negative. Serological tests were positive for Epstein-Barr ...

The latex slide test (L.S.T.) has been shown to be simple to perform and easy to read. It gives results comparable with the more complicated serological procedures used in the diagnosis of rheumatoid arthritis.In 603 cases the L.S.T. and differential agglutination test gave a high degree of correlation. There were only four discrepancies between the two tests. The L.S.T. is the more practicable...

Article Response to: towards the rational utilization of SARS-CoV-2 serological tests in clinical practice was published on May 1, 2021 journal Clinical Chemistry and Laboratory Medicine (CCLM) (volume 59, issue 6).

Tests were carried out to determine the aetiology of the encephalitis, including serological and other tests for the encephalitic flaviviruses. Polymerase chain reaction tests on CSF were negative and attempts at virus isolation were unsuccessful. However, serum collected on day 4 (and again on days 6 and 13) was strongly reactive by enzyme immunoassay for IgM to the encephalitic flavivirus gro...