What Is The Meaning Of Hepatitis B

Stages Of Hepatitis C

The hepatitis C virus affects people in different ways and has several stages:

• Incubation period. This is the time between first exposure to the start of the disease. It can last anywhere from 14 to 80 days, but the average is 45
• Acute hepatitis C. This is a short-term illness that lasts for the first 6 months after the virus enters your body. After that, some people who have it will get rid of, or clear, the virus on their own.
• Chronic hepatitis C. For most people who get hepatitis C up to 85% the illness moves into a long-lasting stage . This is called a chronic hepatitis C infection and can lead to serious health problems like liver cancer or cirrhosis.
• Cirrhosis. This disease leads to inflammation that, over time, replaces your healthy liver cells with scar tissue. It usually takes about 20 to 30 years for this to happen, though it can be faster if you drink alcohol or have HIV.
• Liver cancer. Cirrhosis makes liver cancer more likely. Your doctor will make sure you get regular tests because there are usually no symptoms in the early stages.

How Is Hepatitis A Transmitted

Hepatitis A infection is usually spread through contaminated food and water. However, there are many other ways through which HAV spreads. The following are major ways:

What You Can Do

Here’s some information to help you get ready for your appointment.

• Be aware of pre-appointment restrictions. When you make the appointment, ask if there’s anything you need to do in advance, such as restrict your diet.
• Write down your symptoms, including any that may seem unrelated to the reason for which you scheduled the appointment.
• Write down key personal information, including major stresses or recent life changes.
• Make a list of all medications, vitamins and supplements you take.
• Consider taking a family member or friend along. Someone who accompanies you may help you remember the information you receive.
• Write down questions to ask your provider.

For hepatitis B infection, some basic questions to ask include:

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Acute Hepatitis B Symptoms

There are three phases of acute hepatitis B infection, and symptoms may differ depending on the stage. Early in the disease, called the prodromal phase, symptoms may include:

• Dark urine and light stool color

During the icteric phase:

• Jaundice develops
• Anorexia, nausea and vomiting may worsen
• Irritated skin lesions may develop
• Other symptoms may subside

Epidemiology Of Acute And Chronic Hbv In Canada

Acute HBV: Canada is a region of low endemicity however, certain vulnerable populations are disproportionately affected. These include Aboriginal peoples, MSM, street-involved youth, and people who are or have been incarcerated.Endnote 2 Peak incidence is among those aged 3039 years. The most commonly identified risk factors are high-risk sexual activities and injection drug use.

Canada has had universal HBV immunization programs in place since the mid-1990s. All provinces and territories have programs that target children aged 913 years, and some have also implemented a neonatal immunization program.Endnote 3 In addition, some provinces/territories provide coverage for high-risk individuals, but eligibility varies across jurisdictions . Despite the success of these programs, there may be many who remain at risk of acquiring HBV.

Immunization contributes to disease control by interrupting disease transmission and decreasing the pool of susceptible people. It is essential to identify those at risk who would benefit from receiving the HBV vaccine.

There is an urgent need to screen, diagnose, and treat chronic HBV infection so as to reduce associated morbidity and mortality and to prevent further transmission.

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Viral Hepatitis Definition And Overview

Hepatitis means inflammation of the liver. Many illnesses and conditions can cause inflammation of the liver, for example, drugs, alcohol, chemicals, and autoimmune diseases. Many viruses, for example, the virus causing mononucleosis and the cytomegalovirus, can inflame the liver. Most viruses, however, do not attack primarily the liver the liver is just one of several organs that the viruses affect. When most doctors speak of viral hepatitis, they are using the definition that means hepatitis caused by a few specific viruses that primarily attack the liver and are responsible for about half of all human hepatitis. There are several hepatitis viruses they have been named types A, B, C, D, E, F , and G. As our knowledge of hepatitis viruses grows, it is likely that this alphabetical list will become longer. The most common hepatitis viruses are types A, B, and C. Reference to the hepatitis viruses often occurs in an abbreviated form The focus of this article is on these viruses that cause the majority of human viral hepatitis.

Hepatitis viruses replicate primarily in the liver cells. This can cause the liver to be unable to perform its functions. The following is a list of major functions of the liver:

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Symptoms Of Hepatitis B

Some people who are infected with the hepatitis B virus have mild, flu-like symptoms and some do not become sick at all. Children who are infected are less likely to have an illness or get sick after getting hepatitis B than adults.

In more severe cases, hepatitis B can cause:

• Loss of appetite.
• Pain in the joints.

Normally, these health problems disappear in a few weeks, but even when the person feels much better, they may still be infectious.

Most adults who become infected with the hepatitis B virus recover completely and do not become infected again. A few people become very ill in the time just after infection and need to go to hospital some may even die.

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What Treatments Are Available For Chronic Hepatitis B If Medications Dont Work

If you have advanced hepatitis B, you might also become a candidate for a liver transplant. This path does not always result in a cure because the virus continues in your bloodstream after a transplant. To prevent being infected again after your transplant, you may be prescribed hepatitis B immunoglobulin with an antiviral agent.

How Is Hepatitis B Spread

• Having unprotected sex.
• Sharing or using dirty needles for drug use, tattoos or piercing.
• Sharing everyday items that may contain body fluids, including razors, toothbrushes, jewelry for piercings and nail clippers.
• Being treated medically by someone who does not use sterile instruments.
• Being bitten by someone with the infection.
• Being born to a pregnant woman with the infection.

Hepatitis B is not spread by:

• Kissing on the cheek or lips.
• Coughing or sneezing.
• Hugging, shaking hands or holding hands.
• Eating food that someone with the infection has prepared.

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What Are The Types Of Hepatitis B

There are two types of hepatitis B infection: acute and chronic.

Acute

An acute infection happens at the beginning, when you first get infected with hepatitis B. Many people are able to clear it from their bodies and recover. In fact, this is true of about 4 in 5 adults who are infected.

Chronic

If you are not able to clear the infection within six months or longer, you have chronic hepatitis B. It is chronic hepatitis B that leads to inflammation and the serious, and possibly fatal, illnesses of cirrhosis of the liver and liver cancer. Treatment can slow disease progress, reduce the chance of liver cancer and increase your chances of surviving.

Who Should Get The Hepatitis B Vaccine

All newborn babies should get vaccinated. You should also get the shot if you:

• Come in contact with infected blood or body fluids of friends or family members
• Use needles to take recreational drugs
• Have sex with more than one person
• Are a health care worker
• Work in a day-care center, school, or jail

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Diagnosis Of Hepatitis B

Blood tests are available to determine if you are or have been infected with hepatitis B. It may take 6 months from the time of infection before a blood test can detect antibodies to hepatitis B, so follow-up testing may be required. During this 6-month period, until you know whether you are infected or not, take action to prevent potential infection of other people.

There are also tests that can assess liver damage from hepatitis B. The interpretation of these tests can be complicated and specialist advice is needed, so talk to your doctor.

All pregnant women are tested for hepatitis B. If you are found to have chronic hepatitis B, your doctor can help reduce the risk of transferring the infection to your newborn child.

What Is Hepatitis C

Hepatitis C is a viral infection that causes liver inflammation and damage. Inflammation is swelling that occurs when tissues of the body become injured or infected. Inflammation can damage organs.

Viruses invade normal cells in your body. Many viruses cause infections that can be spread from person to person. The hepatitis C virus spreads through contact with an infected persons blood.

Hepatitis C can cause an acute or chronic infection.

Although no vaccine for hepatitis C is available, you can take steps to protect yourself from hepatitis C. If you have hepatitis C, talk with your doctor about treatment. Medicines can cure most cases of hepatitis C.

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Hbv Dna Hbv Genotype And Hbv Drug Resistance Assays

Specimen: Serum or plasma

Container: Red-top tube, yellow-top tube , gel-barrier tube, plasma preparation tube, or lavender tube

Collection method: Routine venipuncture

The specimen should be transfused to separate plasma/serum from cells within 6 hours and kept frozen when testing cannot be done promptly.

The tests use PCR amplification, DNA probe hybridization, and sequencing method.

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How You Can Get Hepatitis B

You can get hepatitis B from:

• injecting drugs using shared needles
• being injured by a used needle
• having a tattoo or piercing with unsterilised equipment
• having a blood transfusion in a country that does not check blood for hepatitis B. Blood transfusions in the UK are checked for hepatitis B.

If you’re pregnant and have hepatitis B, you can also pass it onto your baby during pregnancy or birth.

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Preparing For An Appointment

You’re likely to start by seeing your family health care provider. However, in some cases, you may be referred immediately to a specialist. Doctors who specialize in treating hepatitis B include:

• Doctors who treat digestive diseases
• Doctors who treat liver diseases
• Doctors who treat infectious diseases

Does This Test Have Other Names

hepatitis screen hepatitis A ab screen hepatitis A antibody , IgM antibody hepatitis B ab screen hepatitis B core antibody IgM antibody hepatitis B surface antigen HBsAG anti-HBs HBsAB anti-HBc HBcAB hepatitis B surface antibody hepatitis B core antibody hepatitis B e antigen hepatitis B e antibody hepatitis C ab screen hepatitis C antibody

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Is Hepatitis B Contagious

Hepatitis B is highly contagious. Its transmitted through contact with blood and certain other bodily fluids. Although the virus can be found in saliva, its not transmitted through sharing utensils or kissing. Its also not transmitted through sneezing, coughing, or breastfeeding.

Symptoms of hepatitis B may not appear for 3 months after exposure. Symptoms can last for several weeks.

But even without symptoms, you can still transmit the infection to others. The virus can live outside the body and remains infectious for at least

Hepatitis B is a highly contagious condition. Its associated with many serious complications, some of which can be life threatening.

But there are many treatment options available and multiple ways you can prevent infection, including getting vaccinated.

If you suspect you may have been exposed to hepatitis B, its important to talk with a doctor to prevent infection and determine the best course of treatment for you.

What Is Hepatitis B

Hepatitis B is the most common serious liver infection in the world. It is caused by the hepatitis B virus that attacks and injures the liver. Two billion people have been infected and about 300 million people are living with a chronic hepatitis B infection. Each year up to 1 million people die from hepatitis B despite the fact that it is preventable and treatable.

Hepatitis B is transmitted through direct contact with infected blood or certain bodily fluids. The virus is most commonly transmitted from an infected pregnant person to their baby during childbirth, due to the blood exchange that happens between mother and baby. It is also transmitted through unsterile medical or dental equipment, unprotected sex, or unsterile needles, or by sharing personal items such as razors, toothbrushes, nail clippers, body jewelry.

Hepatitis B is a silent epidemic because most people do not have symptoms when they are newly infected or chronically infected. Thus, they can unknowingly spread the virus to others and continue the silent spread of hepatitis B. For people who are chronically infected but dont have any symptoms, their liver is still being silently damaged which can develop into serious liver disease such as cirrhosis or liver cancer.

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Results And Next Steps

The results of a hepatitis B titer panel can help a doctor determine a persons hepatitis B status. The results can be confusing if a person has never been through this type of testing before, but the doctor can explain the findings.

The results for the titer come back as either negative or positive on each subtest of the panel. Positive means that the virus or antibodies showed up on the test, while negative means that they did not.

The following table outlines what positive and negative results mean on different parts of the test and the possible next steps.

The information comes from the Immunization Action Coalition:

How Do Doctors Treat Hepatitis B

Doctors typically dont treat hepatitis B unless it becomes chronic. Doctors may treat chronic hepatitis B with antiviral medicines that attack the virus.

Not everyone with chronic hepatitis B needs treatment. If blood tests show that hepatitis B could be damaging a persons liver, a doctor may prescribe antiviral medicines to lower the chances of liver damage and complications.

Medicines that you take by mouth include

• tenofovir disoproxil fumarate

A medicine that doctors can give as a shot is peginterferon alfa-2a .

The length of treatment varies. Hepatitis B medicines may cause side effects. Talk with your doctor about the side effects of treatment. Tell your doctor before taking any other prescription or over-the-counter medicines.

For safety reasons, you also should talk with your doctor before using dietary supplements, such as vitamins, or any complementary or alternative medicines or medical practices.

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How Is Hepatitis B Transmitted

Hepatitis B is spread in several distinct ways: sexual contact sharing needles, syringes, or other drug-injection equipment or from mother-to-child at birth.

In the United States, in 2018, injection drug use was the most common risk factor reported among people with an acute HBV infection, followed by having multiple sex partners. Less commonly reported risk factors included accidental needle sticks, surgery, transfusions, and household contact with a person with HBV infection. In the United States, healthcare-related transmission of HBV is rare.

Mother-to-child transmission of HBV is especially concerning, because it is preventable. An estimated 25,000 infants are born to mothers diagnosed with HBV each year in the United States, and approximately 1,000 mothers transmit HBV to their infants. Without appropriate medical care and vaccinations, 90% of HBV-infected newborns will develop chronic infection, remaining infected throughout their lives. Up to 25% of people infected at birth will die prematurely of HBV-related causes. For this reason, the standard of care for pregnant women includes an HBV test during each pregnancy so that the appropriate steps can be taken to prevent HBV-positive mothers from transmitting the disease to her infant.

Does Hepatitis B Show Up In Routine Blood Tests

Routine blood tests do not detect hepatitis B virus infection. Hepatitis B tests are specifically done if blood tests show abnormal liver function results, or if a person experiences symptoms or falls into the high-risk category for HBV infection.

A panel of HBV-specific blood tests are required to detect HBV infection.

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Treatment For Suspected Exposure

Anyone who has had potential exposure to HBV can undergo a postexposure prophylaxis protocol.

This consists of HBV vaccination and hepatitis B immunoglobin . Healthcare workers give the prophylaxis after the exposure and before an acute infection develops.

This protocol will not cure an infection that has already developed. However, it decreases the rate of acute infection.

Whats The Prognosis For Hepatitis B

Your doctor will know youâve recovered when you no longer have symptoms and blood tests show:

• Your liver is working normally.
• You have hepatitis B surface antibody.

But some people don’t get rid of the infection. If you have it for more than 6 months, youâre whatâs called a carrier, even if you donât have symptoms. This means you can give the disease to someone else through:

• Unprotected sex
• Contact with your blood or an open sore
• Sharing needles or syringes

Doctors donât know why, but the disease does go away in a small number of carriers. For others, it becomes whatâs known as chronic. That means you have an ongoing liver infection. It can lead to cirrhosis, or hardening of the organ. It scars over and stops working. Some people also get liver cancer.

If youâre a carrier or are infected with hepatitis B, donât donate blood, plasma, body organs, tissue, or sperm. Tell anyone you could infect — whether itâs a sex partner, your doctor, or your dentist — that you have it.

Show Sources

CDC: âHepatitis B Questions and Answers for Health Professionals,â âHepatitis B Questions and Answers for the Public.â

Mayo Clinic: âHepatitis B.â

UpToDate: âHepatitis B virus: Screening and diagnosis.â

CDC.

HealthyPeople.gov: âHepatitis B in Pregnant Women: Screening.â

Annals of Internal Medicine: âScreening for Hepatitis B Virus Infection in Nonpregnant Adolescents and Adults: U.S. Preventive Services Task Force Recommendation Statement.â

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