Assertion: flu | /r/HasProperty | the cause of the outbreak
Facets:
Source sentences:
text: During a respiratory illness outbreak in a closed setting (e.g., hospitals, long-term care facility, cruise ship, boarding school, summer camp) testing for influenza virus infection can be very helpful in determining if influenza is the cause of the outbreak.
text: During a respiratory illness outbreak in a closed setting (e.g., hospitals, long-term care facility, cruise ship, boarding school, summer camp) testing for influenza can be very helpful in determining if influenza is the cause of the outbreak.