35 articles for “Positivity”

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Research ArticleOpen accessIn the abstractSeroprevalence of Human Immunodeficiency Virus and Syphilis Infections among Patients Attending the STD, Gyn. and Obs., ANC Clinics of Northern India: Observations from Seven Rounds of Sentinel Surveillance (1998-2004)Tahziba Hussain, K. K. Kulshreshtha, V. S. Yadav et al.The data of HIV sentinel surveillance, i.e., National Annual Sentinel Surveillance (NASS) carried out under the aegis of National AIDS Control Organisation (NACO) of seven rounds revealed that the prevalence of HIV infection is less among the attendees of STD, Obs. & Gyn., Antenatal ( ANC) clinics whereas that of Syphilis is high. This study was carried in order to … …American Journal of Infectious Diseases, Vol. 2, Issue 1 · 31 Mar 2006 · 7,064 accessesView PDF Cite

Research ArticleOpen accessIn the abstractOccurrence of Feline Immunodeficiency Virus (FIV) and Feline Leukemia (FeLV) in São Luís-MANathálya dos Santos Martins, Ana Paula Sousa Rodrigues, Stefanne Aparecida Gonçalves et al.The aim of this study was to evaluate the occurrence of feline immunodeficiency virus and feline leukemia virus in the city of São Luís, Maranhão state (MA), Brazil. A total of 120 blood samples were tested using the Polymerase Chain Reaction (PCR) to detect the proviral DNA, with an amplification of a fragment of 244bp of the FIV's gene gag. … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 3 · 24 Jul 2015 · 8,946 accessesView PDF Cite

Research ArticleOpen accessIn the abstractComparison of enzyme Immunoassay with Immunofluorescence Assay for the Diagnosis of Mycoplasma pneumoniae Respiratory Tract Infections in ChildrenOsama Mohammed Saed Abdul-WahabMycoplasma pneumoniae is a frequent cause of acute respiratory infections in both children and adults. Currently, diagnosis of M. pneumoniae infection will based principally on serology and the detection of IgM can provide an early and sensitive diagnosis in children. A variety of commercial immunodiagnostic assays, such as Indirect Enzyme-Linked Immunosorbent (ELISA) assay and Indirect Immunofluorescence (IFA), are now available … …American Journal of Immunology, Vol. 9, Issue 2 · 21 Jun 2013 · 7,416 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Seroepidemiological Survey of Hantavirus in Ilheus CountyMarcos Lazaro Moreli, Vivaldo Gomes da Costa, Flavia Rubia ParizHantaviral diseases are infections caused by a group of viruses that belong to the genus hantavirus and the family Bunyaviridae. In Brazil, several cases of hantavirus have been detected with the use of serological methods including immunofluorescence and Enzyme-Linked Immunosorbent Assay (ELISA). To date, 1.573 cases have been reported in several states across the country with a fatality rate of … …Current Research in Virology, Vol. 1, Issue 1 · 30 Aug 2012 · 13,388 accessesView PDF Cite

Research ArticleOpen accessIn the abstractProperties of Absolute Stability in the Presence of Time LagsM. De la Sen, J. L. Malaina, A. Gallego, J. C. SotoThis study is concerned with the properties of absolute stability independent of the delays of time-delay systems, possessing non commensurate internal point delays, for any nonlinearity satisfying a Popov’s- type time positivity inequality. That property holds if an associate delay-free system is absolutely stable and the size of the delayed dynamics is sufficiently small. The results are obtained for nonlinearities … …American Journal of Applied Sciences, Vol. 2, Issue 10 · 31 Oct 2005 · 6,571 accessesView PDF Cite