نتایج جستجو برای: serum neutralization test
تعداد نتایج: 1095976 فیلتر نتایج به سال:
Background and Aims: Canine distemper (CD) is a deadly infectious disease of Canidae family. CD is a multi-systemic viral disease and is specified by wide range of clinical symptoms. The manifestations are not always indicative of CD, therefore a laboratory confirmation is necessary for suspected cases. Materials and Methods: Different clinical specimens of 19 CD suspected unvaccinated dogs wer...
Assessment of rabies virus (RABV) neutralizing antibodies in subjects vaccinated or injected with anti-RABV immunoglobulins is central determination protection. The rapid fluorescent focus inhibition test (RFFIT) used for assessment activity serum. current polyclonal preparations on the market pose difficulties production and vary quality. RABV monoclonal (MAbs) are being evaluated as replaceme...
West Nile (WN) virus was introduced into the United States in 1999, when the first human cases of WN fever and encephalitis appeared in New York City. From there, the virus has spread throughout North America, in some areas cocirculating with the related flavivirus St. Louis encephalitis (SLE) virus. Public health laboratories currently use an immunoglobulin M (IgM) antibody capture enzyme-link...
A procedure is described for the routine laboratory diagnosis of viral serum antibodies. Antigens are dotted on nitrocellulose strips or sheets, and sera are applied on absorbent paper strips. Antigen-antibody complexes are detected with enzyme-conjugated antiglobulin and development of a colored, insoluble substrate product. The test allows processing of multiple sera in one 3- to 5-h operatio...
The recent emergence of the human infection confirmed to be caused by severe fever with thrombocytopenia syndrome virus (SFTSV) in China is of global concern. Safe diagnostic immunoreagents for determination of human and animal seroprevalence in epidemiological investigations are urgently needed. This paper describes the cloning and expression of the nucleocapsid (N) protein of SFTSV. An N-prot...
The immunoperoxidase antibody (IPA) technique was used to develop two new tests for serodiagnosis of respiratory syncytial virus infections: a microneutralization test based on the reduction of the number of infected cells and an IPA test for determination of virus-specific immunoglobulin G (IgG). Neutralizing antibody was determined both in the presence and absence of complement. In a group of...
Sites involved in antibody-mediated neutralization of feline immunodeficiency virus were mapped by reciprocal exchange of envelope fragments or amino acids between molecular clones of feline immunodeficiency virus with different susceptibilities to neutralization by a polyclonal cat serum. Combinations of mutations within HV-4 or within HV-4 and HV-5 changed the susceptibility of the viruses to...
1. 35O22 neutralizing breadth and potency. a. Neutralization by 35O22 and its variants against an 8-isolate Env-pseudovirus mini-panel. b. Neutralization profile of patient N152 serum and monoclonal antibodies. 2. Amino acid sequences of the variable regions of 35O22 and its variants.
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