Hepatitis Viruses/Symptoms/Causes

 

Hepatitis Viruses

General concepts:

Viral hepatitis is an infection that may cause liver inflammation and damage. Inflammation is a swelling that may occur when tissues of the body become injured or infected. Inflammation damage the organs.

Viral hepatitis has emerged as a major public health problem throughout the world affecting several hundreds of millions of people. Hepatitis virus is happening due to morality in the human population, both from acute infection and the chronic sequel which include in the case of hepatitis B, C and D, chronic hepatitis, and cirrhosis. Hepa cellular carcinoma which is one of the ten most common cancers in the world is closely associated with hepatitis B and at least in different regions of the world with the hepatitis C virus.

Symptoms:

Many people with hepatitis do not have signs and do not have information that they are infected. If symptoms occur with another infection, symptoms may appear anytime from 2 weeks to 6 months after exposure. Symptoms of chronic viral hepatitis can take some time to develop. Symptoms of hepatitis can include fever, loss of appetite, vomiting, abdominal pain, dark urine, light-colored stools, joint pain.

Causes:

The condition can be self-limiting or can progress to scarring liver cancer. Hepatitis are maximum causes the hepatitis viruses in the world but other infections, harmful or toxic drugs and alcohol.

The hepatitis viruses include a range of unrelated and often highly unusual human pathogens. Researchers have discovered many different viruses connect that cause hepatitis.      

These are the main different hepatitis viruses :        

1.       Hepatitis A virus

2.       Hepatitis B virus

3.       Hepatitis C virus

4.       Hepatitis D virus

5.       Hepatitis E virus

6.       THE GB Hepatitis virus

7.       Hepatitis F virus

8.       GB virus C

These are their details.

Hepatitis A virus

Hepatitis A virus (HAV) is described as a hepatic virus, asymmetrical RNA virus. It is the cause of infectious or epidemic hepatitis .this virus may spread by humans. It spread commonly when persons come close or touch any other body part. it also spread by our parents. so, we have found some characteristics that are present in our parents. It also does not a chronic liver disease and its harmful case. There is no cure present for this hepatitis currently.

Hepatitis B virus

Hepatitis B virus (HBV), a part of heap DNA virus group, double-stranded DNA viruses which replicate,  unusually, by reverse transcription. Hepatitis B virus is endemic in the human population and hyperons dynamic in many parts of the world. Natural headman virus infections also occur in other mammals including birds, squirrels, and ducks. It does not cause chronic liver disease.

Hepatitis C virus

Hepatitis C virus (HCV), enveloped single-stranded RNA virus which displays to be distantly related to flavor viruses, although hepatitis C is not transmitted by arthropod vectors. Several genotypes have been identified. Infection is with this more recently identified virus is very common in many countries.

Hepatitis C virus is associated with chronic liver disease and also with primary liver cancer in many countries of the world

Hepatitis D virus

Hepatitis D virus (HDV)  is a common disease,  single-stranded, circular RNA virus with a number of similarities to a certain plant. This virus requires headman virus helper functions for propagation in hepatic and is an important cause of acute and severe chronic liver damage in many regions of the world.

Hepatitis E virus

Hepatitis E virus (HEV) , the  cause enteric ally –transmitted non-A, non-B hepatitis is another non-enveloped, single-stranded RNA virus, which shares lots of biophysical and biochemical properties with calico viruses .The most similar genome to HEV is found in a plant virus and there are similarities in these functional domains to a  rubella virus. The final arrange classification is yet to be agreed upon.

Hepatitis E virus is an important cause of large outbreak and plague of acute hepatitis in the subcontinent of India, Central and southeast Asia, the Middle East, parts of Africa, and elsewhere.

Hepatitis F virus

Hepatitis F virus (HFV) is a virus that connects to different cases of hepatitis several hepatitis F virus candidates emerged in the 1990s, but none of these reports have been substantiated. It was believed that it may be caused by some rare blood samples. Then with the passage of time by investigations  it was found that this virus did not exist

The GB Hepatitis viruses

The GB hepatitis viruses were connected recently and preliminary genomic characterization shows that they are related to other positive-standard RNA viruses with local regions of sequence identity with local regions of sequence identity with various flavor viruses. Phylogenetic recognize of genomic sequences showed that these viruses are not genetic constitution of the hepatitis c virus.

GB virus C

The GB virus C is another very viral cause of hepatitis that is probably spread by blood and sexual contact.There is very small proof   that this virus causes hepatitis, as it does not appear to replicate primarily in the liver it is now classified as GB virus C. This virus is responsible for a high during pregnancy, particularly during the third trimester. Supposedly HIV patients set up with GBV-C can survive longer than those without GBV-C but the patients may be different in other ways.

OTHER VIRUSES

The virus first known to cause is hepatitis was the yellow fever virus, a mosquito-borne flavivirus. Other viruses that can cause hepatitis include:

·         Adenoviruses

·         Bunya viruses: Crimean-Congo Hemorrhagic fever virus, Dobra virus, Hanan virus, Pummel virus, Rift Valley fever virus, and Seoul virus.

·         Coronavirus: severe acute respiratory syndrome virus.

·         Erythrism virus:  Parvovirus

·         Foil viruses: an Ebola viruses,  Marburg virus

·         Flavi  viruses: dengue, Kayseri forest disease virus , Omsk hemorrhagic fever virus.

·          Herpesviruses: cytomegalovirus, Epstein-Barr virus, varicella-zoster virus7, and human herpes virus

·         Orthomyxo viruses: influenza

·         Pecorino viruses: echovirus

·         Revco virus: Colorado tick fever virus, reovirus 3

·         KIs-v is a virus spread in2011 from almost four patients with raised serum almandine transfer assess without other known cause.