Which sign or symptom is NOT part of the "3 H's" of plague?

The correct answer is hepatomegaly because this condition does not fall under the "3 H's" commonly associated with plague. The "3 H's" of plague include hematemesis (vomiting blood), hemoptysis (coughing up blood), and hematochezia (passing blood in the stool). These symptoms are indicative of serious infections and are directly related to the acute presentations seen in plague, particularly due to the systemic effects of the infection.

Hepatomegaly, while it may occur in various conditions, is not specifically represented in the classic signs and symptoms of plague. Its presence would suggest other underlying hepatic conditions rather than being a hallmark of plague, making it the correct response in identifying which symptom does not belong to the "3 H's."