Multiplicity of infection | definition of multiplicity of infection by Medical dictionary
multiplicity of infection
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multiplicity of infection The ratio of viral or phage particles to cells in a system to infection targets (e.g., cells in a defined volume).
multiplicity of infection (MOI) (virology) the ratio of infectious virus particles to susceptible CELLS. A high MOI indicates that a lot of virus particles (VIRIONS) are present in the system, relative to susceptible cells.
References in periodicals archive
Prospective risk of morbidity in relation to multiplicity of infection
with Plasmodium falciparum in Sao Tome.
After the drug was removed, cells were inoculated with either wildtype (WT) virus, which did not contain the H275Y mutation in NA, or oseltamivir-resistant virus with the H275Y mutation (as positive control) at a low multiplicity of infection
The magnitude and time course of these increases is dependent on both virus strain and multiplicity of infection
1 PFU, which is equivalent to a multiplicity of infection