VNA

(redirected from Viral Nucleic Acid)
AcronymDefinition
VNAVisiting Nurse Association
VNAViral Nucleic Acid
VNAVector Network Analyzer
VNAVery Narrow Aisle
VNAVirgin Nigeria Airways (now Air Nigeria)
VNAVietnam News Agency
VNAVideo Network Adapter
VNAVirginia Nurses Association
VNAMinistry of Foreign Affairs (Vietnam)
VNAVideo Nas Aldeias (Portuguese: Video in Villages; Brazil)
VNAValue Network Analysis
VNAVirtual Network Architecture
VNAVendor-Neutral Archive (data management)
VNAVedior North America (Wakefiled, MA)
VNAVirus Neutralizing Antibody
VNAVon Neumann Architecture
VNAVirginia Numismatic Association
VNAVinkulierte Namensaktien (registered shares with restricted transferability)
VNAVietnam News Association
References in periodicals archive ?
Before conducting experiments in the main chemistry laboratory, we first tested our ability to recover and detect viral nucleic acid from glass slides using our clinical PCR assays and known positive samples in the controlled environment of a biosafety cabinet in our virology laboratory.
This extraction technology has successfully been evaluated to screen for viral nucleic acids in routine blood donations.
Therefore, we investigated the suitability of this separation technology, which had successfully been evaluated for the extraction of viral nucleic acids in routine blood donation screening, for serum and plasma samples (3,4).
Tissue specimens from only 3 of the 16 patients were available for testing, which was a major laboratory limitation in the investigation, particularly for detecting viral nucleic acid by PCR assays.
Today, the main advantages of these assays are great sensitivity (measuring as few as 50 copies/mL of plasma), ease of use for quantification, and early detection of viral nucleic acid in the peripheral blood before an antibody response develops, an application that has proven to be especially important in screening of human blood products.
With an oligonucleotide probe specific for USUV, ISH showed presence of viral nucleic acid in the cytoplasm of neurons in a distribution pattern closely matching IHC (Figure 1, C and F).
Specific applications in which the use of ultrahigh-sensitivity immuno-PCR techniques have been proposed include prion protein detection, in which there is no nucleic acid associated with the infectious agent, and the detection of viral antigens in blood bank screening applications, in which there can be very little viral nucleic acid present at certain stages of the infection.
Detection of viral nucleic acid is not equivalent to isolating a virus.