• strain
  • It has been repeatedly noted that many test conditions such as the cell culture system, virus strain, virus challenge dose, virus input multiplicity of infection, and time of harvesting, etc., can substantially affect or even alter the test results, thus making comparative studies and unambiguous evaluations very difficult. (semanticscholar.org)
  • cell
  • The present invention provides an attenuated virus, which is derived from Modified Vaccinia Ankara virus and characterized by the loss of its capability to reproductively replicate in human cell lines. (google.com.au)