Viral
Hepatitis
What is Viral Hepatitis?
Viral HEPATITIS is “inflammation
of the liver” caused by a viral infection.
A number of viruses can lead to inflammation
of the liver including the hepatitis viruses
(Learn more about the liver). The most common
types of viral hepatitis infections in the United States
are hepatitis A, hepatitis B, and hepatitis C. There are
fewer cases of hepatitis D and hepatitis E virus infections
in the U.S.
Viral hepatitis infections can be acute (short
term) or chronic (long-term or lifetime).
The hepatitis viruses all affect the liver,
but are different from each other. The hepatitis viruses
have different:
- Types of genetic material,
- Modes of transmission from person-to-person,
- Incubation periods (length of time from
exposure until symptoms appear),
- Availability of vaccines to prevent infection,
- Likelihood that the infection will become
chronic,
- Likelihood of developing liver damage,
cirrhosis, or liver cancer,
- Types of treatment available.
Most people with
viral hepatitis have NO symptoms.
Healthcare providers only test for hepatitis
viruses when they are aware of certain risk factors or they
suspect liver inflammation or damage. Since most people have
no symptoms of viral hepatitis, it is important to talk with
your doctor about your risk factors and if concerned, ask
for viral hepatitis tests.
If you suspect you have hepatitis, even
if you have no symptoms, see a doctor right away. Acute hepatitis
can be life threatening. For new infections, medications
may help fight off the virus so that the infection does not
become a chronic (long-term or life-long) infection. If the
hepatitis is chronic, you and your doctor can help keep your
liver healthy.
Hepatitis A, B, and
C are Different Diseases
There are five known hepatitis viruses,
each named after letters of the alphabet. Hepatitis A, B
and C are most common in the United States . Hepatitis D
and E are relatively rare in the U.S. Each of the viruses
affect the liver, but they are different types of viruses.
Each of the viruses and the illnesses they cause are discussed
in more detail in other sections of this website. Below is
an overview of hepatitis A, B and C.
Hepatitis A: The hepatitis
A virus is spread by the ingestion of fecal matter (stool.
poop, shit). This usually occurs by eating contaminated food
or drinking contaminated water. It can also happen during
oral sex, particularly oral-anal sex. People with hepatitis
A who do not wash their hands after using the restroom can
contaminate food or other items that are put in the mouth.
Hepatitis A is found throughout the world and is especially
common in developing countries with poor sanitation systems.
Hepatitis A is rarely life-threatening, though it can cause
severe problems and even death in people with chronic liver
disease, HIV, and other health conditions. Most people fight
off the disease in a few weeks or a few months and it does
not cause chronic hepatitis (infection lasting longer than
six months). Infected persons may or may not have symptoms
and symptoms can range from mild to severe. Children rarely
show symptoms. Hepatitis A can be prevented by a vaccine
(two shots spaced six months apart). Most U.S. cases are
person-to-person transmission, but you can get it from unsanitary
water or ice, raw shellfish, and uncooked fruits and vegetables.
It is important to wash hands after using the restroom, changing
diapers, changing bedpans or handling soiled clothing and
bedding.
Hepatitis B: The hepatitis
B virus is spread by contact with infected blood or bodily
fluids. It can be transmitted during sex and from mother
to child during birth. The hepatitis B virus is highly infectious.
Most people with hepatitis B have no symptoms. If symptoms
do occur, they can include loss of appetite, fatigue, stomach
cramps, vomiting and in some cases, the eyes and skin may
turn yellow. Acute hepatitis B is a new infection (less than
6 months). Some people are able to fight off the virus and
get better. For others, the infection becomes chronic (more
than 6 months). People with chronic hepatitis B infection
usually remain infected for the rest of their lives. While
many people with hepatitis B live a long, healthy life, the
infection can cause liver failure, liver cancer, cirrhosis
and death Hepatitis B is spread by sexual contact, sharing
injection equipment, razors, needles or toothbrushes, from
mother to infant during birth and by non-sterile tattooing
or body piercing equipment. According to the U.S. Centers
for Disease Control and Prevention (CDC), more than 300,000
Americans are infected with the hepatitis B virus each year
and one million are chronically infected. Hepatitis B can
be prevented through vaccination and eliminating exposure
to the virus. People who are sexually active, health care
workers, emergency responders, or travel to certain areas
of Asia , Africa , and Central and South America should get
the hepatitis B vaccine (a three shot series taken over a
six month period).
Hepatitis C: The hepatitis
C virus is transmitted by contact with infected blood or
bodily fluids. According to the CDC, more than 4 million
Americans are infected by the Hepatitis C Virus. While many
people with hepatitis C live a long life, infection can cause
chronic liver disease, cirrhosis, liver cancer, and even
death. IV drug users, health care professionals exposed to
needle sticks, and people who received blood transfusions,
blood products, or organ transplants before 1992 are at high-risk
for hepatitis C infections. Others who may be at-risk are
prisoners, people who received non-sterile tattoos and piercing,
hemodialysis, and emergency responders. Most people who get
infected, become chronically infected. Unfortunately there
is no vaccine available for hepatitis C, but treatments are
available.
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