Results 11 to 20 of about 84,952 (272)

Comparison among plaque assay, tissue culture infectious dose (TCID50) and real-time RT-PCR for SARS-CoV-2 variants quantification

open access: yesIranian Journal of Microbiology, 2022
Background and Objectives: SARS-CoV-2 variants of concern (VOC) and interest (VOI) pose a significant threat to public health because the rapid change in the SARS-CoV-2 genome can alter viral phenotypes such as virulence, transmissibility and the ...
Maria Isabel Zapata-Cardona   +8 more
doaj   +2 more sources

Dynamic Model Visualizing the Process of Viral Plaque Formation

open access: yesJournal of Microbiology & Biology Education, 2012
In Microbiology and Virology courses, viral plaques are often presented to students as the way one can visualize viruses/bacteriophages. While students generally grasp the idea that counting plaques is essentially the same as counting viruses in their ...
Boriana Marintcheva
doaj   +3 more sources

Plaques Formed by Mutagenized Viral Populations Have Elevated Coinfection Frequencies

open access: yesmBio, 2017
The plaque assay is a common technique used to measure virus concentrations and is based upon the principle that each plaque represents a single infectious unit.
Elizabeth R. Aguilera   +4 more
doaj   +3 more sources

Improved Zika virus plaque assay using Vero/TMPRSS2 cell line

open access: yesMicrobiology Spectrum
Plaque assay is the gold standard for the quantification of viable cytopathic viruses like Zika virus (ZIKV). Some strains of ZIKV produce plaques that are very difficult to accurately visualize and count on the commonly used Vero cell line.
Olukunle O. Oluwasemowo   +3 more
doaj   +2 more sources

Machine-learning-based automated quantification machine for virus plaque assay counting [PDF]

open access: yesPeerJ Computer Science, 2022
The plaque assay is a standard quantification system in virology for verifying infectious particles. One of the complex steps of plaque assay is the counting of the number of viral plaques in multiwell plates to study and evaluate viruses.
Gridsada Phanomchoeng   +6 more
doaj   +2 more sources

Identification and characterisation of SARS-CoV-2 and Human alphaherpesvirus 1 from a productive coinfection in a fatal COVID-19 case [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 2022
BACKGROUND During routine Coronavirus disease 2019 (COVID-19) diagnosis, an unusually high viral load was detected by reverse transcription real-time polymerase chain reaction (RT-qPCR) in a nasopharyngeal swab sample collected from a patient with ...
Alice Laschuk Herlinger   +20 more
doaj   +1 more source

Accelerated and improved quantification of lymphocytic choriomeningitis virus (LCMV) titers by flow cytometry. [PDF]

open access: yesPLoS ONE, 2012
Lymphocytic choriomeningitis virus (LCMV), a natural murine pathogen, is a member of the Arenavirus family, may cause atypical meningitis in humans, and has been utilized extensively as a model pathogen for the study of virus-induced disease and immune ...
Darlynn Korns Johnson, Dirk Homann
doaj   +1 more source

Efficient Selection of Recombinant Fluorescent Vaccinia Virus Strains and Rapid Virus Titer Determination by Using a Multi-Well Plate Imaging System

open access: yesBiomedicines, 2021
Engineered vaccinia virus (VACV) strains are used extensively as vectors for the development of novel cancer vaccines and cancer therapeutics. In this study, we describe for the first time a high-throughput approach for both fluorescent rVACV generation ...
Mingyu Ye   +3 more
doaj   +1 more source

SARS-CoV-2 coinfection in immunocompromised host leads to the generation of recombinant strain

open access: yesInternational Journal of Infectious Diseases, 2023
Objectives: Recombination related to coinfection is a huge driving force in determining the virus genetic variability, particularly in conditions of partial immune control, leading to prolonged infection.
Silvia Zannoli   +13 more
doaj   +1 more source

SARS-CoV-2 RBD protein enhances the oncolytic activity of the vesicular stomatitis virus

open access: yesFrontiers in Immunology, 2023
Despite recent advances in the research on oncolytic viruses (OVs), a better understanding of how to enhance their replication is key to improving their therapeutic index.
Almohanad A. Alkayyal   +21 more
doaj   +1 more source

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