| SF | Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
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| SFT | Sabin-Feldman test; sensory feedback therapy; skinfold thickness |
| Sabin, Albert | <person> Polish-U.S. Virologist, 1906-1993. See: Sabin vaccine, Sabin-Feldman dye test. (05 Mar 2000) |
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| Sabin-Feldman dye test | A method for the detection of anti-toxoplasma antibody in serum, based on the fact that Toxoplasma gondii cells (from peritoneal exudate in mice) are fairly well stained with alkaline methylene blue, whereas organisms in a serum that contains specific antibody have no affinity for the dye; furthermore, normal toxoplasma cells become rounded, and the nucleus and cytoplasm deeply stained, when treated with the methylene blue; on the other hand, when dye is mixed with organisms and antibody, the cells retain their crescent shape and only the shrunken nuclear endosome is stained. (05 Mar 2000) |
| sabin vaccine | Oral Polio virus Vaccine (OPV). The polio virus in opv is attenuated (weakened). The sabin vaccine is named after the american virologist albert sabin. See immunization, polio. (12 Dec 1998) |
| Florence, Albert | <person> French physician, 1851-1927. See: Florence's crystals. (05 Mar 2000) |
| Florence flask | A globular long-necked bottle of thin glass used for holding water or other liquid in laboratory work. (05 Mar 2000) |
| Florence's crystals | Brown rhombic crystal's formed at the interface between a drop of Lugol's solution and a drop of fluid that contains semen; not a specific test for the latter. (05 Mar 2000) |
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