Assertion: severe dengue | /r/HasProperty | recognized in 1950
Facets:
Source sentences:
text: Severe dengue (previously known as dengue haemorrhagic fever) was first recognized in the 1950s during dengue epidemics in the Philippines and Thailand.
text: Severe dengue was first recognised in the 1950s during dengue epidemics in the Philippines and Thailand, but it is now reported worldwide.
text: Severe dengue was first recognized in the 1950s during dengue epidemics in the Philippines and Thailand.