Hepatitis A B And C: Whats The Difference
Hepatitis is often caused by a virus that comes in different strains. The most common strains of hepatitis are hepatitis A, B, and C. They all are contagious, but they differ primarily by the way they are spread.
Table: Differences among hepatitis A, B, and C
Table: Differences among hepatitis A, B, and C
Hepatitis A: How Does It Spread
It usually spreads through food or water. Food can be tainted when it’s touched by a person with hepatitis who did not wash their hands after using the bathroom. This transfers tiny amounts of infected stool to the food. Raw shellfish, fruits, vegetables, and undercooked foods are common culprits in hepatitis A outbreaks. The virus can also spread in daycare centers if employees aren’t careful about washing hands after changing diapers.
Hepatitis C And The Hep C Virus
Hepatitis C is a liver infection that can lead to serious liver damage. Its caused by the hepatitis C virus. About 2.4 million people in the U.S. have the disease. But it causes few symptoms, so most of them don’t know. The virus spreads through an infected persons blood or body fluids.
There are many forms of the hepatitis C virus, or HCV. The most common in the U.S. is type 1. None is more serious than any other, but they respond differently to treatment.
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What Is Chronic Viral Hepatitis
Patients infected with HBV and HCV can develop chronic hepatitis. Doctors define chronic hepatitis as hepatitis that lasts longer than 6 months. In chronic hepatitis, the viruses live and multiply in the liver for years or decades. For unknown reasons, these patients’ immune systems are unable to eradicate the viruses, and the viruses cause chronic inflammation of the liver. Chronic hepatitis can lead to the development over time of extensive liver scarring , liver failure, and liver cancer. Liver failure from chronic hepatitis C infection is the most common reason for liver transplantation in the U.S. Patients with chronic viral hepatitis can transmit the infection to others with blood or body fluids as well as infrequently by transmission from mother to newborn.
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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How Is Hepatitis Treated
Someone who has hepatitis will need to drink enough fluids, eat healthy foods, and get rest. The person’s family members may need to get hepatitis vaccines, if they haven’t already.
Later on, the person will get follow-up blood tests. Often the blood tests will show that the person no longer has hepatitis. Sometimes, the blood tests may show that someone is now a carrier of hepatitis he or she won’t have hepatitis symptoms, but could pass the infection to other people.
Sometimes, blood tests will continue to show that some people still have hep B or C, which means they may have chronic hepatitis. If so, they will need to eat healthy foods and take very good care of themselves by getting rest and visiting the doctor regularly. In some cases, someone with chronic hepatitis may get special medicine for the condition.
We hope that this heads-up on hepatitis will help you stay safe. It may sound funny, but you can love your liver by washing your hands and making smart choices!
How Do You Get Hepatitis C
Hepatitis C can be contracted only through direct blood contact. In the U.S., the primary mode of transmission is blood exposure through sharing needles. Mother-to-child transmission is about 5 percent of cases. Hepatitis C infection might also be a risk for people who received a blood transfusion or an organ transplant before 1992, when widespread testing of the blood supply for hepatitis C began.
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Who Should Be Vaccinated
Children
- All children aged 1223 months
- All children and adolescents 218 years of age who have not previously received hepatitis A vaccine
People at increased risk for hepatitis A
- International travelers
- Men who have sex with men
- People who use or inject drugs
- People with occupational risk for exposure
- People who anticipate close personal contact with an international adoptee
- People experiencing homelessness
People at increased risk for severe disease from hepatitis A infection
- People with chronic liver disease, including hepatitis B and hepatitis C
- People with HIV
Other people recommended for vaccination
- Pregnant women at risk for hepatitis A or risk for severe outcome from hepatitis A infection
Any person who requests vaccination
There is no vaccine available for hepatitis C.
Deterrence And Patient Education
Patient education remains one of the most important components in preventative measures regarding HBV infection.
Education should be provided to expecting parents about the importance of vaccination and to clarify erroneous beliefs about vaccinations.Patient education should also include counseling about the avoidance of risky behaviors that predispose an individual to be infected, including promiscuous sexual activity or intravenous drug abuse. They should also be advised not to share items such as shaving razors, toothbrushes, or hair combs due to possible transmission via mucosal contact or through microtrauma to protective barriers.
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Whats The Difference Between Hepatitis A B And C
Chronic Illness, Hepatitis A, Hepatitis B, Hepatitis C, Hepatology, Liver Health
Youve probably seen stories in the news about hepatitis A outbreaks linked to infected restaurant workers, or how a rising rate of hepatitis C infections is causing increased health care costs.
But you might not know the difference between hepatitis A, B and C, or why you should be concerned about them.
Heres why: Hepatitis, or inflammation of the liver, affects more than 50,000 new people each year and is a leading cause of liver cancer and liver transplants. The Centers for Disease Control and Prevention estimates as many as 6 million people in the U.S. are living with hepatitis.
Having hepatitis can be dangerous and uncomfortable. Symptoms are similar for hepatitis A, B and C and may include fever, fatigue, loss of appetite, nausea, vomiting, abdominal pain, dark urine, gray-colored stools, joint pain and jaundice . Even worse, chronic hepatitis often has no symptoms, and people dont know theyre infected until they get very sick.
Michael Fried, MD, director of the UNC Liver Center, explains the difference between the types of hepatitis and how to protect yourself.
Three Types Of Hepatitis And What To Do About Them
Contact our practice at 410-224-4887 if you suspect you or a loved one has any form of hepatitis.
Hepatitis describes inflammation of your liver, the most common types being caused by one of several viruses. Hepatitis symptoms can make you sick for the short term or cause long-term, chronic liver problems.
When you have a form of hepatitis, it affects your livers ability to function. If your body cant clear the virus from your system, you may face long-term liver damage, liver failure, or liver cancer.
At Digestive Disorders Associates in Annapolis, Maryland, the expert team of board-certified gastroenterologists can help you recover from an acute form of hepatitis or manage your long-term infection.
Heres more about the most common forms of viral hepatitis and what you can do to heal.
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What Are The Symptoms Of Hepatitis
There are 2 types of Infections from Hepatitis Acute and Chronic.
Acute infections The symptoms in Hepatitis A, B and C are similar and can occur in acute infections. Jaundice , dark coloured urine, pale stools, fever, unexplained prolonged tiredness, poor appetite, abdominal pain, nausea and vomiting.
Duration of infection may last for approximately up to 6 months. People with acute infections usually recover completely and will form an immunity to Hepatitis.
Chronic infections symptoms may not be presented at first in people who are infected. However, when symptoms appear, it is often a sign of advanced liver disease.
Duration of infection is usually more than 6 months and in some cases if left untreated, may lead to serious complications such as liver damage, cirrhosis, liver cancer, and even death.
The person who carries the Hepatitis virus is also known as a carrier and can spread the disease to others
What Are The Symptoms And Signs Of Viral Hepatitis
The period of time between exposure to hepatitis and the onset of the illness is called the incubation period. The incubation period varies depending on the specific hepatitis virus. Hepatitis A virus has an incubation period of about 15 to 45 days Hepatitis B virus from 45 to 160 days, and Hepatitis C virus from about 2 weeks to 6 months.
Many patients infected with HAV, HBV, and HCV have few or no symptoms of illness. For those who do develop symptoms of viral hepatitis, the most common are flu-like symptoms including:
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How Does It Affect The Body
The incubation period for hepatitis B can range from . However, not everyone who has acute hepatitis B will experience symptoms.
About 95 percent of adults completely recover from hepatitis B. However, hepatitis B can also become chronic.
The risk of chronic hepatitis B is greatest in those who were exposed to HBV as young children. Many people with chronic hepatitis B dont have symptoms until significant liver damage has occurred.
In some people whove had hepatitis B, the virus can reactivate later on. When this happens, symptoms and liver damage may occur. People with a weakened immune system and those being treated for hepatitis C are at a higher risk for HBV reactivation.
How Is Viral Hepatitis Diagnosed
Diagnosis of viral hepatitis is based on symptoms and physical findings as well as blood tests for liver enzymes, viral antibodies, and viral genetic materials.
Symptoms and physical findings
Diagnosis of acute viral hepatitis often is easy, but the diagnosis of chronic hepatitis can be difficult. When a patient reports symptoms of fatigue, nausea, abdominal pain, darkening of urine, and then develops jaundice, the diagnosis of acute viral hepatitis is likely and can be confirmed by blood tests. On the other hand, patients with chronic hepatitis due to HBV and HCV often have no symptoms or only mild nonspecific symptoms such as chronic fatigue. Typically, these patients do not have jaundice until the liver damage is far advanced. Therefore, these patients can remain undiagnosed for years to decades.
Blood tests
There are three types of blood tests for evaluating patients with hepatitis: liver enzymes, antibodies to the hepatitis viruses, and viral proteins or genetic material .
Liver enzymes: Among the most sensitive and widely used blood tests for evaluating patients with hepatitis are liver enzymes, called aminotransferases. They include aspartate aminotransferase and alanine aminotransferase . These enzymes normally are contained within liver cells. If the liver is injured , the liver cells spill the enzymes into the blood, raising the enzyme levels in the blood and signaling that the liver is damaged.
Examples of tests for viral antibodies are:
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How Are Hepatitis B And C Diagnosed
Hepatitis B is diagnosed by a series of blood tests. The test may show an ongoing infection or antibodies that indicate that the patient is protected against hepatitis B. In patients who have a positive screening test that suggests the possibility of ongoing infection, further testing is done to determine the levels of the virus in the bloodstream.
Hepatitis C is diagnosed via a blood test called a Hepatitis C Antibody Test. A positive result means that hepatitis C antibodies are present in the blood. But a positive antibody test doesnt necessarily mean a person has hepatitis C. A further blood test is needed to confirm the diagnosis. This second blood test quantifies the amount of the virus or the viral load in the liver and the bloodstream.
Hepatitis C: How Does It Spread
It spreads through infected blood. In the U.S., sharing needles or other items used to inject drugs is the most common cause of infection. Getting a tattoo or body piercing with an infected needle is another means of exposure. A mother may pass the virus to their child at birth. In rare cases, unprotected sex spreads hepatitis C, but the risk appears small. Having multiple sex partners, HIV, or rough sex seems to raise risk for spreading hepatitis C.
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What Are The Common Types Of Viral Hepatitis
Although the most common types of viral hepatitis are HAV, HBV, and HCV, some clinicians had previously considered the acute and chronic phases of hepatic infections as “types” of viral hepatitis. HAV was considered to be acute viral hepatitis because the HAV infections seldom caused permanent liver damage that led to hepatic failure. HBV and HCV produced chronic viral hepatitis. However, these terms are outdated and not currently used as frequently because all of the viruses that cause hepatitis may have acute phase symptoms . Prevention techniques and vaccinations have markedly reduced the current incidence of common viral hepatitis infections however, there remains a population of about 1 to 2 million people in the U.S. with chronic HBV, and about 3.5 million with chronic HCV according to the CDC. Statistics are incomplete for determining how many new infections occur each year the CDC documented infections but then goes on to estimate the actual numbers by further estimating the number of unreported infections .
Hepatitis A
Hepatitis B
Hepatitis C
Types D, E, and G Hepatitis
Individuals who already have chronic HBV infection can acquire HDV infection at the same time as they acquire the HBV infection, or at a later time. Those with chronic hepatitis due to HBV and HDV develop cirrhosis rapidly. Moreover, the combination of HDV and HBV virus infection is very difficult to treat.
- HIV patients
- People with hemophilia who receive blood clotting factors
Willowbrook State School Experiments
A New York University researcher named Saul Krugman continued this research into the 1950s and 1960s, most infamously with his experiments on mentally disabled children at the Willowbrook State School in New York, a crowded urban facility where hepatitis infections were highly endemic to the student body. Krugman injected students with gamma globulin, a type of antibody. After observing the temporary protection against infection this antibody provided, he then tried injected live hepatitis virus into students. Krugman also controversially took feces from infected students, blended it into milkshakes, and fed it to newly admitted children.
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Do You Need Vaccinations Before Traveling Abroad
The CDC divides travel vaccinations into three categories: 1) routine, 2) recommended, and 3) required. The only vaccine classified as “required” by International Health Regulations is the yellow fever vaccination for travel to certain countries in sub-Saharan Africa and tropical South America.
“Routine” vaccinations are those that are normally administered, usually during childhood, in the United States. These include immunizations against:
- tetanus
Screening For Viral Hepatitis
The purpose of screening for viral hepatitis is to identify people infected with the disease as early as possible, even before symptoms and transaminase elevations may be present. This allows for early treatment, which can both prevent disease progression and decrease the likelihood of transmission to others.
Hepatitis A
Hepatitis A causes an acute illness that does not progress to chronic liver disease. Therefore, the role of screening is to assess immune status in people who are at high risk of contracting the virus, as well as in people with known liver disease for whom hepatitis A infection could lead to liver failure. People in these groups who are not already immune can receive the hepatitis A vaccine.
Those at high risk and in need of screening include:
- People with poor sanitary habits such as not washing hands after using the restroom or changing diapers
- People who do not have access to clean water
- People in close contact with someone who has hepatitis A
- People who use illicit drugs
- People with liver disease
- People traveling to an area with endemic hepatitis A
The presence of anti-hepatitis A IgG in the blood indicates past infection with the virus or prior vaccination.
Hepatitis B
The CDC, WHO, USPSTF, and ACOG recommend routine hepatitis B screening for certain high-risk populations. Specifically, these populations include people who are:
Other
Hepatitis A
Hepatitis B and C
Hepatitis D
Hepatitis E
Alcoholic hepatitis
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