Assertion: chancroid's ulcer | /r/CreatedBy | haemophilus ducreyi
Facets:
Source sentences:
text: Research has repeatedly shown that individuals seropositive for human immunodeficiency virus (HIV) have increased numbers of ulcers caused by Haemophilus ducreyi.
text: Tests for the identification of Treponema pallidium (causes syphilis) and HSV (Herpes Simplex Virus, type 2) may be performed to exclude the possibility that ulcers are caused by those agents instead of Haemophilus ducreyi.