نتایج جستجو برای: h9
تعداد نتایج: 732 فیلتر نتایج به سال:
This study was designed to determine the extent of exposure of individuals to the avian influenza viruses by evaluating their humoral and cell-mediated immune response. Therefore blood samples were collected from three cohorts i.e. poultry related personals, healthy individuals and flu patients. Serum and PBMC analysis provided the information about humoral and cell-mediated immune responses re...
Influenza A virus subtypes are classified on the basis of the antigenicity of their envelope glycoproteins, hemagglutinin (HA; H1-H17) and neuraminidase. Since HA-specific neutralizing antibodies are predominantly specific for a single HA subtype, the contribution of antibodies to the heterosubtypic immunity is not fully understood. In this study, mice were immunized intranasally or subcutaneou...
The N-terminal segment (FR-H1) of the heavy chain (V(H)) of antibodies shows significant conformational variability correlating with the nature of the amino acids H6, H7 and H10 (Kabat H9). In this study, we have established a causal relationship between the local sequence and the structure of this framework region and linked this relationship to important biophysical properties such as affinit...
Avian Influenza (AI) is caused by type A influenza virus belonging to the family orthomyxoviridae, which is classified into 16 HA and 9 NA subtypes based on two surface glycoprotein’s haemagglutinin (HA) and neuraminidase (NA). In the present study we did identification and HA-subtyping of avian influenza virus by reverse transcription-PCR (RT-PCR) during the first outbreaks of AI in India duri...
A cross-sectional study was conducted to investigate seroprevalence and virus prevalence of the H9 subtype avian influenza in non-vaccinated broiler farms dense poultry-populated districts, Lahore Sheikhupura Punjab-Pakistan. convenient sampling method adopted for collection blood (n=500) oropharyngeal swab samples from 25 each district hemagglutination inhibition assay RT-PCR test, respectivel...
Highly pathogenic avian influenza A(H5N1), clade 2.3.2.1a, with an H9-like polymerase basic protein 1 gene, isolated in Bhutan in 2012, replicated faster in vitro than its H5N1 parental genotype and was transmitted more efficiently in a chicken model. These properties likely help limit/eradicate outbreaks, combined with strict control measures.
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