Assertion: lymphoblast's cell | /r/HasProperty | infected by virus
Facets:
Source sentences:
text: T lymphocytes: T lymphocytes can recognize cells infected by viruses and directly destroy these cells.
text: When these cells are infected with a virus (or another intracellular pathogen), the cells degrade foreign proteins via antigen processing.
text: Natural killer cells recognize and destroy altered cells or cells that have been infected by viruses.
text: Usually they kill cells that have been infected with a virus.