Assertion: traveler | /r/Synonym | the index case
Facets:
Source sentences:
text: Cases that involve travellers who have been infected in a foreign country and have then returned to their home country, or who have been infected by that traveller, known as the “index case”, do not count towards declaring a pandemic.
text: Cases that involve travellers who have been infected in China and have then returned to their home country, or who have been infected by that traveller, known as the “index case”, do not count towards declaring a pandemic.