Assertion: lassa fever's symptom | /r/CapableOf | vary in early course of the disease
Facets:
value: from individual
type: OTHER
Source sentences:
text: Lassa fever is difficult to diagnose because its symptoms are non-specific and varies from individual to individual especially in the early course of the disease; it is difficult to distinguish Lassa fever from other viral haemorrhagic disease like Ebola and other disease that cause fever like typhoid fever, yellow fever, malaria and shigellosis.