What diseases can be caused by viruses entering the bloodstream?
Dec 02, 2025
Source: Cainiu Health
Dr. Li Feng
Introduction
Viral invasion into the bloodstream can cause diseases such as viral hepatitis, epidemic hemorrhagic fever, dengue fever, Epstein-Barr (EB) virus infection, and viral myocarditis. The virus spreads via the circulatory system to organs throughout the body, causing damage. If symptoms such as fever, fatigue, or bleeding tendencies occur, prompt medical attention is recommended. After entering the bloodstream, hepatitis viruses specifically target and damage hepatocytes, leading to
Viral entry into the bloodstream can lead to diseases such as viral hepatitis, epidemic hemorrhagic fever, dengue fever, EB virus infection, and viral myocarditis. Viruses spread via the circulatory system to various organs throughout the body, causing damage. If symptoms such as fever, fatigue, or bleeding tendencies occur, prompt medical attention is recommended.
1. Viral Hepatitis: After entering the bloodstream, hepatitis viruses target and damage hepatocytes, leading to inflammation and necrosis of liver cells. Symptoms include fatigue, loss of appetite, and jaundice. Common types include hepatitis A, B, and C. In severe cases, it may progress to cirrhosis.
2. Epidemic Hemorrhagic Fever: Hantavirus spreads through the bloodstream to tissues such as the kidneys and vascular endothelium, causing fever, bleeding, and kidney injury. It is accompanied by headache and conjunctival congestion. Severe cases may result in shock or acute renal failure.
3. Dengue Fever: Dengue virus invades systemic capillaries via the bloodstream, increasing vascular permeability. This manifests as high fever, rash, and severe joint and muscle pain. Some patients may develop severe dengue, which can lead to serious bleeding or shock.
4. EB Virus Infection: After entering the bloodstream, Epstein-Barr (EB) virus infects lymphocytes, causing infectious mononucleosis. Symptoms include fever, sore throat, lymphadenopathy, and enlargement of the liver and spleen. In rare cases, it may affect the nervous or hematopoietic systems.
5. Viral Myocarditis: Coxsackievirus, adenovirus, and other viruses invade the myocardium via the bloodstream, causing myocardial inflammation. Symptoms include chest tightness, palpitations, and fatigue. Severe cases may present with arrhythmias, heart failure, or even life-threatening complications.
In daily life, take proper personal protective measures to prevent viral infections, maintain regular sleep patterns to enhance immunity, isolate promptly when suspected symptoms appear to avoid transmission, eat light and easily digestible foods to support nutritional needs, avoid overexertion to reduce organ strain, and promote recovery.
