STRAIN VARIATION OF RICKETTSIA ORIENTALIS IN THE COMPLEMENT FIXATION TEST*

Strain Variation of Rickettsia Orientalis in the Complement Fixation Test.

It is well known that Tsutsugamushi disease or scrub typhus in Japan has been prevalent in a limited northern district of the country, but Japanese investigators were not aware that there was a different type of scrub typhus in other parts of Japan, although some sporadic cases had been reported in the foothills of Mt. Fuji (Sakita, 1934), and Kanagawa Prefecture (Fukuzumi et al., 1950), which ...

Detection of rotavirus by Latex Agglutination Test (Rotales); Comparison with Electron Microscopy and Complement Fixation Test

Evaluation of the gonococcal complement-fixation test.

The gonococcal complement-fixation test (GCFT), based on the same principle as the Wassermann reaction (WR), has been in use for over 60 years. The test was applied for the first time, using a culture of the gonococcus as antigen, by Muller and Oppenheim (1906) to establish the diagnosis in a case of arthritis. Teague and Torrey (1907) suggested that negative results in the GCFT were due to dif...

Quantitative micro-complement fixation test.

A quantitative micro-complement fixation test capable of detecting nanogram quantities of antigen is described. The test is simple to perform and is highly reproducible. Typical results from three antigen-antibody systems are given.

Survey of influenza antibody in England by the strain-specific complement-fixation test.

The first recorded case of recovery from hepatic coma after an exchange blood transfusion was that of Lee and Tink (1958). They gave two exchange transfusions of fresh blood to a boy aged 13 who was deeply jaundiced and comatose. After the first transfusion of 3,260 ml. his condition was unchanged, but when a second exchange of 3,140 ml. was given he improved and recovered completely. Trey et a...