Assertion: viral infection | /r/CreatedBy | virus
Facets:
Source sentences:
text: A viral infection is any type of infection that is caused by a virus, which is even smaller than bacteria and is encapsulated by a protective coating, so it is more difficult to kill than bacteria.
text: Viral infections are caused by a virus.
text: A viral infection is caused by a virus, for example a flu virus, the sars virus, avian flu and others
text: Bacterial infections are caused by bacteria, and viral infections are caused by viruses.
text: Viral infection is caused by viruses, which are a type of micro-organism.