Is hepatitis B contagious?

Nov 18, 2024 Source: Cainiu Health

Dr. Gao Jun

Introduction

Hepatitis B refers to chronic hepatitis B, and whether it is contagious depends on the specific situation. If a patient with chronic hepatitis B is in the active viral replication phase, the disease may be transmissible; however, if the patient is in the low-replication phase or is an asymptomatic virus carrier, the infectivity is relatively low. To prevent the spread of the hepatitis B virus, individuals should receive the hepatitis B vaccine.

Generally, hepatitis B refers to chronic hepatitis B. Whether it is contagious or not depends on the specific circumstances. If a patient with chronic hepatitis B is in the active viral replication phase, they may be contagious. However, if the patient is in a phase of low viral replication or is simply a virus carrier, the contagiousness is relatively low. If experiencing any discomfort, it is advisable to seek timely medical attention. Detailed explanations are as follows:

When a patient with chronic hepatitis B is in the active viral replication phase, there is a larger quantity of hepatitis B virus in the body and the viral activity is stronger. These viruses can be transmitted to others through routes such as blood, mother-to-child transmission, and sexual contact.

When a patient with chronic hepatitis B is in the low viral replication phase or is simply a virus carrier, the amount of hepatitis B virus in the body is relatively small and the viral activity is weaker. Therefore, during this phase, the contagiousness of chronic hepatitis B is relatively low.

To prevent the spread of hepatitis B virus, individuals should receive the hepatitis B vaccine; avoid sharing personal items that may be contaminated with blood from infected individuals; and use condoms during sexual activity to reduce the risk of transmission. If concerned about possible infection with the hepatitis B virus, individuals should seek medical attention promptly for relevant testing and counseling.

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Is liver cancer or chronic viral hepatitis contagious?

In general, liver cancer itself is not contagious, but chronic viral hepatitis can be transmitted. In daily life, it is important to avoid sharing personal items that may come into contact with blood, such as toothbrushes and razors. Individuals with chronic viral hepatitis should actively seek treatment to reduce the risk of virus transmission. Healthy individuals can enhance their resistance to related viral hepatitis through measures such as receiving the hepatitis B vaccine.

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Can patients with hepatitis B take entecavir?

In general, "hepatitis B" refers to hepatitis B virus infection. Patients with chronic hepatitis B can take entecavir, which is a first-line antiviral drug in clinical treatment. Entecavir can effectively suppress hepatitis B virus replication and delay the progression of liver damage. However, it must be used properly under the guidance of a doctor; self-medication or stopping the medication without medical advice is not recommended. During treatment, patients should regularly undergo follow-up tests for liver function and viral markers.

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Can hepatitis B be cured?

In general, hepatitis B refers to Hepatitis B virus (HBV) infection. Whether it can be cured depends on the specific situation. Most cases of acute hepatitis B can be completely cured, while chronic hepatitis B is currently difficult to eradicate entirely. However, with proper treatment, the condition can be effectively controlled over the long term, allowing patients to maintain a normal life. The key difference lies in the age at which the virus is acquired and the type of disease presentation. If you suspect or have been diagnosed with hepatitis B, it is recommended to seek timely medical care at a正规 hospital.

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What medication should be taken for high alanine aminotransferase?

Generally speaking, there is no specific medication for "elevated alanine aminotransferase (ALT)." High ALT levels may result from factors such as chronic sleep deprivation, excessive alcohol consumption, non-alcoholic fatty liver disease, drug-induced liver injury, or chronic hepatitis B. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve the condition through general management, medications, or other treatments under the guidance of a physician.