Jessy Rose George

Learn More
A chemically defined liquid medium has been developed for the study of the physiology and antigen production of the Legionnaires disease bacterium. The medium contains basal salts, vitamins, alpha-ketoglutaric acid, pyruvate, 0.05% l-cysteine, 0.05% glutathione, and a mixture of 20 additional amino acids, each of 0.01% final concentration, except serine,(More)
The amino acids required for growth and as energy sources by 10 strains of Legionella pneumophila were determined by using a chemically defined medium. All strains required arginine, cysteine, isoleucine, leucine, threonine, valine, methionine, and phenylalanine or tyrosine. Most strains (7 of 10) required serine, and two strains had to be supplied proline(More)
Serial passage of six strains of Legionella pneumophila and one strain of Pseudomonas aeruginosa in a liquid chemically defined medium deficient in trace metals resulted in the death of five L. pneumophila strains and very limited growth in the remaining strain and the P. aeruginosa strain. Addition of either iron or magnesium restored growth to almost(More)
OBJECTIVE To determine accuracy of a human immunodeficiency virus type 1 (HIV-1) antibody testing system using a device to collect and stabilize oral mucosal transudate (OMT), a fluid with increased levels of IgG; an enzyme immunoassay (EIA) screening test optimized for OMT; and a Western blot confirmatory test designed for use with OMT. DESIGN The OMT(More)
Research has demonstrated that oral mucosal transudate (OMT), a serum-derived fluid that enters saliva from the gingival crevice and across oral mucosal surfaces, can be preferentially concentrated by a novel collecting system to yield detectable levels of immunoglobulins (i.e., IgG and IgM antibodies) against various bacterial and viral diseases. Assays(More)
Rapid, on-site human immunodeficiency virus (HIV) testing has the potential to improve the delivery of prevention services in publicly funded counseling and testing sites. The Single Use Diagnostic System (SUDS) HIV-1 is the only rapid enzyme immunoassay (EIA) approved for diagnostic use in the United States. To evaluate the feasibility of using SUDS in(More)
Serum samples from 20 human immunodeficiency virus type 1 (HIV-1)- and 30 HIV-2-infected and 7 dually infected individuals were reacted by using the indirect immunofluorescence assay (IFA) and membrane fluorescence assay in order to determine whether these methods were useful for typing HIV-1 and HIV-2 antibodies. Although 41 of 50 (82%) of the HIV-1- and(More)
Antisera to streptococcal groups A through G containing 4% polyethylene glycol 6000 were prepared and evaluated. Seventy strains of homologous and heterologous beta- and non-beta-hemolytic streptococci were included in the evaluation. Homologous reactions were determined against extracts prepared by four extraction methods: hot hydrochloric acid(More)
A comparative study was made of the reverse radial immunodiffusion (RRID) technique and the quantitative precipitin test for determining the amount of precipitable antibodies present in streptococcus group B antisera. The coefficient of correlation between the 2 tests was 0.963 when a purified carbohydrate antigen was used. The results of this study show(More)
The word appendix originates from Latin word „having on‟ and it is called vermiform shaped appendix because it looks like a three inch earthworm. Many years ago organs such as appendix and tonsils were thought to be useless „leftovers‟ of evolution. These parts were called vestigial organs. The word „vestigial‟ means a trace or a mark left by something. It(More)