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

