Results 41 to 50 of about 37,780 (272)

Comparative evaluation of a simple and sensitive assay for detection of orthomyxo and paramyxoviruses

open access: yesMemorias do Instituto Oswaldo Cruz, 1994
Studies were done to evaluate comparatively the traditional HA assay and a more recently introduced lectin-neuraminidase (LN) methodologyin search of a simple and sensitive assay for virus detection during laboratorial diagnosis.
J. N. S. S. Couceiro   +4 more
doaj   +1 more source

Generation of virus-specific cytotoxic T cells in vitro I. Induction conditions of primary and secondary Sendai virus-specific cytotoxic T cells [PDF]

open access: yes, 1979
H-2-restricted cytotoxic T cells specific for Sendai virus were generated in vitro in a primary response from normal mouse lymphocytes cultured in the presence of infective as well as inactivated Sendai virus. Antigen-presenting cells of different origin,
Andersson   +41 more
core   +1 more source

Improvement of the indirect hemagglutination test for the detection of antibodies to Streptococcus pyogenes

open access: yesBrazilian Journal of Medical and Biological Research, 1998
An indirect hemagglutination test for a seroepidemiological survey of Streptococcus pyogenes infection was standardized. This is an improved modification of the indirect hemagglutination test which utilizes an unstable reagent prepared with fresh blood ...
G. Rubinsky-Elefant   +3 more
doaj   +1 more source

Forward Genetic Dissection of Biofilm Development by Fusobacterium nucleatum: Novel Functions of Cell Division Proteins FtsX and EnvC. [PDF]

open access: yes, 2018
Fusobacterium nucleatum is a key member of the human oral biofilm. It is also implicated in preterm birth and colorectal cancer. To facilitate basic studies of fusobacterial virulence, we describe here a versatile transposon mutagenesis procedure and a ...
Abu Amar Mohamed Al Mamun   +10 more
core   +2 more sources

Cross-protection against European swine influenza viruses in the context of infection immunity against the 2009 pandemic H1N1 virus : studies in the pig model of influenza [PDF]

open access: yes, 2015
Pigs are natural hosts for the same influenza virus subtypes as humans and are a valuable model for cross-protection studies with influenza. In this study, we have used the pig model to examine the extent of virological protection between a) the 2009 ...
A Krumbholz   +58 more
core   +6 more sources

Using standard serology blood tests to diagnose latent syphilis

open access: yesVestnik Dermatologii i Venerologii, 2017
Goal. To conduct a comparative assessment of the results of regulated serological tests obtained as a result of blood tests in patients suffering from latent syphilis. Materials and methods.
G. L. Katunin, A. B. Rubtsov
doaj   +1 more source

Role of early viral surface antigens in cellular immune response to vaccinia virus [PDF]

open access: yes, 1976
Infection of mice with the vaccinia virus strain WR, Elstree or DIs, a conditional lethal mutant of vaccinia virus, resulted in the generation of vaccinia virus-specific sensitized cytolytic T lymphocytes (CTL).
Ertl, H., Koszinowski, Ulrich H.
core   +1 more source

International Laboratory Comparison of Influenza Microneutralization Assays for A(H1N1) pdm09, A(H3N2), and A(H5N1) Influenza Viruses by CONSISE [PDF]

open access: yes, 2015
The microneutralization assay is commonly used to detect antibodies to influenza virus, and multiple protocols are used worldwide. These protocols differ in the incubation time of the assay as well as in the order of specific steps, and even within ...
Engelhardt, OG   +9 more
core   +1 more source

Hemagglutination assays for the diagnosis and prevention of IgA anaphylactic transfusion reactions [PDF]

open access: yesBlood, 1994
Abstract Passive hemagglutination assays (PHA) may be used to detect IgA antibodies to confirm clinical diagnoses of suspected IgA anaphylactic transfusion reactions. Passive hemagglutination inhibition assays (PHIA) may be used to identify IgA-deficient blood donors whose plasma- containing components are transfused to prevent ...
Delores Mallory   +3 more
openaire   +4 more sources

Cross-species infectivity of H3N8 influenza virus in an experimental infection in swine [PDF]

open access: yes, 2015
Avian influenza A viruses have gained increasing attention due to their ability to cross the species barrier and cause severe disease in humans and other mammal species as pigs.
Amadori, Massimo   +14 more
core   +2 more sources

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