Rotavirus Growth Rate
Rotavirus Growth Rate - Related Videos
03:30
Assessing Rotavirus Growth Curve by Plaque Assay
0 Views •
2026
Source: Kadoya, S., Sano, D. Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus. J. Vis. Exp. (2019).This video demonstrates the use of a plaque assay to assess the rotavirus growth curve. The method involves infecting host cells with diluted virus, overlaying with agarose to restrict spread, and staining to visualize plaques formed by viral replication. By counting plaque-forming units at defined time points, the resulting growth curve reveals the lag, exponential, and...
10:49
Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
0 Views •
Cited by 5 •
2019
Here we present two protocols, one for measuring the specific growth rate and the other for the cell-binding ability of rotavirus using the plaque assay and RT-qPCR. These protocols are available for confirming the differences in phenotypes between rotavirus strains.
03:43
Plasmid-Mediated Generation of Recombinant Rotavirus in Cultured Cells
0 Views •
2026
Source: Philip, A. A., et al. Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins. J. Vis. Exp. (2020)This video demonstrates the recovery of recombinant rotavirus by transfecting plasmids encoding viral genome segments into hamster kidney cells, followed by amplification in monkey epithelial cells, enabling studies of rotavirus biology, replication, and vaccine development.
03:44
Isolation and Visualization of Rotavirus Genome via Gel Electrophoresis
0 Views •
2026
Source: Philip, A. A., et al., Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins. J. Vis. Exp. (2020)This video demonstrates the isolation of rotavirus double-stranded RNA from clarified cell lysates. It further illustrates the separation and visualization of genome segments through polyacrylamide gel electrophoresis.
04:12
Visualizing Trypsin-Activated Rotavirus Infection Using a Plaque Assay
0 Views •
2026
Source: Philip, A. A., et. al., Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins. J. Vis. Exp. (2020)This video demonstrates a plaque assay technique to monitor rotavirus infection in epithelial cells. Trypsin activation enhances viral entry, and staining highlights viable cells, enabling visualization of infection-induced plaques.
FAQs
Rotavirus replication proceeds through a coordinated intracellular sequence rather than a single amplification event. The segmented double-stranded RNA genome is transcribed after entry, and replication complexes assemble in viroplasms. These sites support production of progeny particles, which are then released when infected cells are damaged or lysed. Changes at any stage can alter the measured time course.
The two readouts track related but nonidentical aspects of infection. Infectious-virus measurements follow the appearance of infectious progeny, whereas genome-copy measurements track rotavirus nucleic acid over time. Examining both can show whether an apparent increase reflects production of infectious virus, genome accumulation, or a difference between those signals. This distinction improves comparisons across experiments.
Observed kinetics depend on more than the virus alone. The relevant comparison variables include viral strain, the infected cell system, and experimental conditions. Susceptible intestinal cells and laboratory cells can therefore produce different time courses, even when investigators study the same virus. Identifying these variables is essential when interpreting differences in replication or transmission potential.
Researchers infect susceptible intestinal or laboratory cells and then measure infectious virus or genome copies at multiple time points. The resulting sequence of measurements shows how quickly the signal changes during infection and allows kinetics to be compared across strains, cell systems, or conditions. Using a consistent readout and experimental context helps keep those comparisons interpretable.
Antibody-mediated neutralization can be assessed by examining how rotavirus replication measurements change when antibodies are part of the experimental comparison. A reduced increase in infectious virus or genome copies would indicate that the measured infection process is being altered under that condition. These kinetics connect an immune factor with viral replication and help characterize antibody activity in the chosen cell system.
Growth-rate measurements provide a replication-based outcome for testing antiviral activity, examining host responses, and evaluating vaccine performance. Investigators can compare how the viral signal changes under different experimental conditions and relate those changes to the immune or intervention context. In infection research, this links cellular replication behavior with questions about control of rotavirus and vaccine-related performance.