نتایج جستجو برای: diagnostic serological assays
تعداد نتایج: 415011 فیلتر نتایج به سال:
Purpose] Mycobacterium tuberculosis (MTB) infection should be detected in all patients before progressing to active tuberculosis (TB) ; however, interferon-γ release assays (IGRAs) and serological assays cannot accurately detect TB infection in all patients. Therefore, we conducted a prospective study to determine whether TB infections in patients with active pulmonary TB could be reliably dete...
The COVID-19 pandemic has exposed the extent of global connectivity and collective vulnerability to emerging diseases. From its suspected origins in Wuhan, China, it spread all corners world a matter months. absence high-performance, rapid diagnostic methods that could identify asymptomatic carriers contributed worldwide transmission. Serological tests offer numerous benefits compared other ass...
visceral leishmaniasis (vl) is a zoonotic disease caused by leishmania species. dogs are considered to be the main reservoir of vl. a number of methods and antigen-based assays are used for the diagnosis of leishmaniasis. however, currently available methods are mainly based on direct examination of tissues for the presence of parasites, which is highly invasive. a variety of serological tests ...
The diagnosis of schistosomiasis in individuals from countries where the disease is not endemic is challenging, and few data are available on the accuracy of serological diagnosis in those patients. We evaluated the performance of eight serological assays, including four commercial kits, in the diagnosis of imported schistosomiasis in individuals from areas where the disease is not endemic, inc...
A prevalence study of past Lyme borreliosis in persons with outdoor occupations was done. Consenting individuals (n = 302) were administered a questionnaire eliciting demographic and occupational data and a clinical history, and were asked to donate a serum specimen for detection of antibodies to Borrelia burgdorferi by enzyme-linked immunosorbent assay (ELISA), immunoblotting, and borrelia inh...
Background and Aims: Newcastle disease virus (NDV) is an avian paramyxovirus (A-PMV 1) and one of the major pathogens in poultries. Vaccination is intended to control the disease, nevertheless this virus is a growing threat to the poultry industry. So, early detection of the virus can prevent the spread of illness and avoid huge economic losses. Towards this goal, in this research, we develop...
OBJECTIVE: To determine the antibody levels (IgM and IgG), using ELISA in suspected patients of COVID-19. STUDY DESIGN: Descriptive cross-sectional study. Place & Duration Study: Real Time PCR Diagnostic Research Laboratory, Peshawar, Khyber Pakhtunkhwa, Pakistan, from May to July 2020. METHODOLOGY: A total 94 blood specimens were collected COVID-19 patients. The (IgG IgM) determined, a IgG IgM...
The European Sero-Epidemiology Network 2 (ESEN2) aimed to compare serological results of vaccine-preventable diseases across Europe. To ensure direct inter-country comparability of hepatitis A virus antibody (anti-HAV) measurements, a standardization panel of 150 sera was developed by a designated reference laboratory and tested by participating national laboratories using assays of choice; eac...
Quality controls of serological assays have to contain defined amounts of human antibodies specific for the targeted antigen. A prevailing issue for array-based antigen assays is that dozens of antigens are targeted within the same assay. Commonly different patient sera are combined and optimal pools are empirically identified. Here, we report a mathematical approach how an optimal sample pool ...
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