What are the symptoms of Ebola hemorrhagic fever?

The symptoms of Ebola hemorrhagic fever are diverse and severe, and the disease typically progresses through several stages. Initial symptoms include sudden onset of high fever, chills, headache, myalgia, nausea, conjunctival congestion, and relative bradycardia, resembling those of a common cold but more intense. Subsequently, patients may develop gastrointestinal symptoms such as vomiting, abdominal pain, diarrhea, and bloody stools. Sore throat and cough are also present in about half of the patients. Around 4–5 days after the onset of illness, patients may enter the acute phase, during which altered mental status, such as delirium or somnolence, may occur. In severe cases, multiple hemorrhages may appear several days after the onset of illness, including hemoptysis, epistaxis, oral bleeding, subconjunctival hemorrhage, gastrointestinal bleeding, vaginal bleeding, skin hemorrhage, or hematuria. The peak of hemorrhagic manifestations occurs around day 10, with more than 50% of patients experiencing severe bleeding, which may lead to death due to hemorrhage, liver and kidney failure, or fatal complications. Additionally, patients may present with hypotensive shock, electrolyte and acid-base imbalance, and rash resembling measles. If you have any concerns, please consult a relevant physician.