Hepatitis B

Hepatitis B is one type of hepatitis – a liver disease- caused by the hepatitis B virus (HBV). Hepatitis B spreads by contact with an infected person's blood, semen or other body fluid. An infected woman can give hepatitis B to her baby at birth.

What is Hepatitis B?

Hepatitis B is a viral infection of the liver that is spread when contact is made with blood or blood products from an infected individual.

Hepatitis B Mechanisms

Hepatitis B Treatment

Hepatitis B Immunization

Hepatitis B Prognosis

Hepatitis B Prevention

Hepatitis B and Hepatitis D

Hepatitis B Symptoms

Hepatitis B Structure: Capsid Flexibility and Function

Closed Circular DNA and Hepatitis B Infection

Is Hepatitis Preventable?

Hepatitis B Diagnosis

Latest Hepatitis B News and Research

Many Americans misunderstand shared decision making in childhood vaccination policies

On Jan. 5, the Centers for Disease Control and Prevention (CDC) dramatically reduced the number of recommended childhood vaccinations from 17 to 11, citing practices in other wealthy nations, including Denmark, Germany, and Japan.

6 Jan 2026

The CDC just sidelined these childhood vaccines. Here’s what they prevent.

The federal government has drastically scaled back the number of recommended childhood immunizations, sidelining six routine vaccines that have safeguarded millions from serious diseases, long-term disability, and death.

6 Jan 2026

World Health Organization validates Brazil's elimination of mother-to-child HIV transmission

The World Health Organization (WHO) has validated Brazil for the elimination of mother-to-child transmission (EMTCT) of HIV, making it the most populous country in the Americas to achieve this historic milestone.

19 Dec 2025

Whooping cough cases rise sharply across the United States

Pertussis, also known as whooping cough, is a vaccination-preventable illness that has been on the rise in the United States. Following a several-year lull during the pandemic, cases of whooping cough rose sixfold in 2024 and remain high.

18 Dec 2025

Virus shells use asymmetry to control RNA release and infection

Viruses are typically described as tiny, perfectly geometric shells that pack genetic material with mathematical precision, but new research led by scientists at Penn State reveals a deliberate imbalance in their shape that helps them infect their hosts.

12 Dec 2025

What the Health? From KFF Health News: Crunch time for ACA tax credits

Congress is running out of time to avert a huge increase in health care premium payments for millions of Americans who buy insurance through the Affordable Care Act marketplaces.

11 Dec 2025

Frequency and quantity of alcohol consumption influence cancer risk

As Americans gear up for the holiday season, new research offers a timely reminder to reflect on the long-term health effects of raising a celebratory glass – or two.

11 Dec 2025

In RFK Jr.’s upside-down world of vaccines, panel votes to end hepatitis B shot at birth

Recent weeks have brought good news about vaccines, with studies indicating that flu vaccination reduces heart disease, shingles vaccines can prevent or slow dementia, and a single human papilloma virus shot protects a girl from cervical cancer for the rest of her life.

5 Dec 2025

Most Americans still back early hepatitis B vaccination despite policy debate

On December 5, 2025, the Trump administration's Advisory Committee on Immunization Practices (ACIP), whose members were handpicked by Health and Human Services (HHS) Secretary and vaccination critic Robert F. Kennedy Jr., is scheduled to determine whether it should recommend that the Centers for Disease Control and Prevention (CDC) change the recommendation in place since 1991 that newborns be vaccinated against hepatitis B.

5 Dec 2025

RFK Jr. wants to delay the hepatitis B vaccine. Here’s what parents need to know.

Working out of a tribal-owned hospital in Anchorage, Alaska, liver specialist Brian McMahon has spent decades treating the long shadow of hepatitis B. Before a vaccine became available in the 1980s, he saw the virus claim young lives in western Alaskan communities with stunning speed.

2 Dec 2025

Kennedy sharpens vaccine attacks, without scientific backing

As the federal government prepares for the next meeting of its Advisory Committee on Immunization Practices, Health and Human Services Secretary Robert F. Kennedy Jr. has intensified his attacks on aluminum vaccine components used in many shots to boost the body's immune response.

24 Nov 2025

What to know about the CDC’s baseless new guidance on autism

The rewriting of a page on the CDC's website to assert the false claim that vaccines may cause autism sparked a torrent of anger and anguish from doctors, scientists, and parents who say Health and Human Services Secretary Robert F. Kennedy Jr. is wrecking the credibility of an agency they've long relied on for unbiased scientific evidence.

22 Nov 2025

Study develops highly accurate polygenic risk models tailored for Han Chinese populations

Researchers at Academia Sinica have developed the first population-specific polygenic risk score (PRS) models for people of Han Chinese ancestry, achieving unprecedented accuracy in predicting risks for common diseases such as diabetes, heart disease, autoimmune disorders.

20 Nov 2025

Immigrants with health conditions may be denied visas under new Trump administration guidance

Foreigners seeking visas to live in the U.S. might be rejected if they have certain medical conditions, including diabetes or obesity, under a Thursday directive from the Trump administration.

6 Nov 2025

Common viruses sharply raise heart attack and stroke risk, major global review shows

In the largest synthesis to date, researchers reviewed 155 studies linking viral infections, including influenza, SARS-CoV-2, HIV, hepatitis C, and shingles, to increased risks of coronary heart disease, stroke, and heart failure. The findings highlight viral infection prevention and vaccination as underappreciated strategies for cardiovascular protection.

30 Oct 2025

Some acute and chronic viral infections linked to increased risk of cardiovascular disease

In the weeks following a bout of influenza or COVID, the risk of heart attack or stroke may rise dramatically, and chronic infections such as HIV may increase the long-term risk of serious cardiovascular disease events, according to new, independent research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

29 Oct 2025

Liver cirrhosis found to be more common in low-income households

Liver cirrhosis is significantly more common in low-income households than in high-income households. This is the result of a national study which, according to the researchers, calls for more preventive action in the most vulnerable groups.

28 Oct 2025

Doctors muffled as Florida moves to end decades of childhood vaccination mandates

Florida plans to end nearly a half-century of required childhood immunizations against diseases that have killed and maimed millions of children. Many critics of the decision, including doctors, are afraid to speak up against it.

27 Oct 2025

Common chemical tetrachloroethylene may be harmful to the liver

Liver disease is usually caused by one of three factors: alcohol consumption, fat buildup in the liver linked to obesity, diabetes and high cholesterol, or hepatitis B and C.

23 Oct 2025

Combination strategy may optimize interferon-based therapy for chronic hepatitis B

Peginterferon-α treatment exhibits low rates of the serological conversion rate of hepatitis B e antigen (HBeAg) and the negative conversion rate of hepatitis B virus (HBV) DNA, with significant myelosuppression leading to treatment discontinuation in some patients.

14 Oct 2025

Hepatitis B

Overview

Hepatitis B Mechanisms

Hepatitis B Treatment

Hepatitis B Immunization

Feature Articles

Hepatitis B Prognosis

Hepatitis B Prevention

Hepatitis B and Hepatitis D

Hepatitis B Symptoms

Hepatitis B Structure: Capsid Flexibility and Function

Closed Circular DNA and Hepatitis B Infection

Is Hepatitis Preventable?

Hepatitis B Diagnosis

Latest Hepatitis B News and Research

Many Americans misunderstand shared decision making in childhood vaccination policies

The CDC just sidelined these childhood vaccines. Here’s what they prevent.

World Health Organization validates Brazil's elimination of mother-to-child HIV transmission

Whooping cough cases rise sharply across the United States

Virus shells use asymmetry to control RNA release and infection

What the Health? From KFF Health News: Crunch time for ACA tax credits

Frequency and quantity of alcohol consumption influence cancer risk

In RFK Jr.’s upside-down world of vaccines, panel votes to end hepatitis B shot at birth

Most Americans still back early hepatitis B vaccination despite policy debate

RFK Jr. wants to delay the hepatitis B vaccine. Here’s what parents need to know.

Kennedy sharpens vaccine attacks, without scientific backing

What to know about the CDC’s baseless new guidance on autism

Study develops highly accurate polygenic risk models tailored for Han Chinese populations

Immigrants with health conditions may be denied visas under new Trump administration guidance

Common viruses sharply raise heart attack and stroke risk, major global review shows

Some acute and chronic viral infections linked to increased risk of cardiovascular disease

Liver cirrhosis found to be more common in low-income households

Doctors muffled as Florida moves to end decades of childhood vaccination mandates

Common chemical tetrachloroethylene may be harmful to the liver

Combination strategy may optimize interferon-based therapy for chronic hepatitis B

Unveiling Hidden Potential: Organoids for Disease Modeling in Neuroscience Research

How GLP‑1 Agonists Are Shaping the Future of Obesity Treatment With Dr Bryony Henderson

Flow chemistry, AI, and NMR: A next-gen approach to scalable API production

Hepatitis B

Overview

Feature Articles

Hepatitis B Prognosis

Hepatitis B Prevention

Hepatitis B and Hepatitis D

Hepatitis B Symptoms

Hepatitis B Structure: Capsid Flexibility and Function

Closed Circular DNA and Hepatitis B Infection

Is Hepatitis Preventable?

Hepatitis B Diagnosis

Latest Hepatitis B News and Research

Unveiling Hidden Potential: Organoids for Disease Modeling in Neuroscience Research

How GLP‑1 Agonists Are Shaping the Future of Obesity Treatment With Dr Bryony Henderson

Flow chemistry, AI, and NMR: A next-gen approach to scalable API production

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