Results 11 to 20 of about 158,406 (264)

Evaluation of six anti-SARS-CoV-2 antibody test kits and practical approaches to optimize the diagnostic performance

open access: yesJournal of Microbiology, Immunology and Infection, 2021
In an investigation of six anti-SARS-CoV-2 antibody kits with different target antigen and methodology, each kit showed comparable performance. As false-positive reactions occurred independently with different kits, specificity increased to 100% when ...
Jae-Hoon Ko   +9 more
doaj   +1 more source

Brucella melitensis B115-based ELISA to unravel false positive serologic reactions in bovine brucellosis: a field study

open access: yesBMC Veterinary Research, 2020
Background Brucellosis is a zoonosis whose incidence is not declining worldwide despite the global effort to control the disease. Accurate and precise diagnosis is a crucial step in any prophylaxis program but single tests to unequivocally detect animals
Adriana Trotta   +7 more
doaj   +1 more source

Seroprevalence of Zika Virus in Wild African Green Monkeys and Baboons

open access: yesmSphere, 2017
Zika virus (ZIKV) has recently spread through the Americas and has been associated with a range of health effects, including birth defects in children born to women infected during pregnancy. Although the natural reservoir of ZIKV remains poorly defined,
Connor R. Buechler   +13 more
doaj   +1 more source

Use of Two Reverse Transcriptases Eliminates False-Positive Results in Differential Display

open access: yesBioTechniques, 1997
The selection of false-positive clones in differential display PCR (DDRT-PCR) represents a formidable drawback to this otherwise powerful technique of detecting subtle differences between cell types.
Ying-Ju Sung, Robert B. Denman
doaj   +1 more source

Accounting for False Positive HIV Tests: Is Visceral Leishmaniasis Responsible? [PDF]

open access: yesPLoS ONE, 2015
Co-infection with HIV and visceral leishmaniasis is an important consideration in treatment of either disease in endemic areas. Diagnosis of HIV in resource-limited settings relies on rapid diagnostic tests used together in an algorithm.
Leslie Shanks   +9 more
doaj   +1 more source

Evaluation of Three Commercial Interferon-γ Assays in a Bovine Tuberculosis Free Population

open access: yesFrontiers in Veterinary Science, 2021
The interferon-γ assay has been used worldwide as an ancillary test for the diagnosis of bovine tuberculosis (bTB). This study aimed to describe, based on the bTB-free status in Switzerland, the difference of applying a more stringent cutoff point of 0 ...
Giovanni Ghielmetti   +6 more
doaj   +1 more source

Research of the Real Time PCR method for detection and identification phytoplasmas on grapevine

open access: yesRUDN Journal of Agronomy and Animal Industries, 2015
For the detection and identification of Candidatus Phytoplasma vitis Flavescence doree - the yellowing grape quarantine pest for the territory of Russia and Candidatus Phytoplasma solani Bois noir - pathogen of blackening crust grape was used one of the ...
G N Matyashova, V G Zaets
doaj   +1 more source

Low risk of serological cross-reactivity between dengue and COVID-19 [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 2020
In the near future, the overlap of Coronavirus disease 2019 (COVID-19) and dengue epidemics is a concrete threat in tropical regions. Co-epidemics of COVID-19 and dengue could be an overwhelming challenge for health systems in low- and middle-income ...
Michele Spinicci   +5 more
doaj   +1 more source

Problems Encountered with Nested PCR to Diagnosis of Phytoplasmas

open access: yesMajallah-i ḥifāẓat-i giyāhān, 2016
Introduction: Phytoplasmas are phytopathogenic bacteria without cell walls that can be found in plant phloem, have been found associated with numerous diseases of plants worldwide.
C. Moslemkhani   +2 more
doaj   +1 more source

Diagnostics of cutaneous adverse drug reactions: evaluation of patch tests, lymphocyte transformation tests, and drug provocation tests

open access: yesJournal of Cutaneous Immunology and Allergy
BackgroundPatch tests (PT) and/or lymphocyte transformation tests (LTT) are typically performed, when diagnosed with cutaneous adverse drug reactions (CADR). However, their positivity rates can vary depending on the rash type.
Tomomu Ishikawa   +5 more
doaj   +1 more source

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