"To contain the virus" means taking actions and measures to prevent the spreading of the virus and to keep it under control, so that it does not infect more people and cause further harm. Full definition
He or she might send you attachments which contain viruses to obtain your passwords. (datingadviceguy.com)
Transmission is by direct contact with infected animals, feces and objects containing virus particles. (broadviewanimalclinic.com)
The attempts to contain the virus include locking the entire population in an enclosed space, and the widespread spread of the virus is terrifying. (markreviewsmovies.com)