Assertion: nausea's cause | /r/HasProperty | stomach virus
Facets:
Source sentences:
text: The two most common causes for nausea and vomiting are stomach virus (viral gastroenteritis) and morning sickness due to pregnancy.
text: While the most common causes of nausea and vomiting are stomach virus, food poisoning and morning sickness, there are several other factors that can lead to the condition.