Virus/Virus Interactions

Welcome to the Virus-virus interactions Database

A virus-virus interaction (VVI) a measurable difference in the course of infection of one virus as a result of a concurrent or prior infection by a different species or strain of virus. (Click here for more information about VVIs and this website.)

This database organizes VVI into three main types: (1) Direct Interactions, (2) Indirect Interactions, and (3) Immunlogical Interactions (a subset of indirect interactions limited to organisms equipped with an adaptive immune system).

Each of these categories is further subdivided in to 4 to 6 subtypes (click here to view the subtypes.)

We welcome comments and contributions of VVI we have missed. (Send e-mail to

Search the database or click "view" below to see a list all currently indexed VVIs.

There are currently 68 VVI in this database. To view them all now, click on the "View VVIs" button below. Or, select one of the three other buttons to place some limits on those to be viewed.
View all 68 VVIs currently in the database.
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Virus/Virus Interaction Homepage / Laura Kasman / Medical University of South Carolina

Website: Alex Kasman, College of Charleston