What are Hepatotropic viruses?
Infections are caused by five hepatotropic viruses: hepatitis A virus (HAV), hepatitis B virus (HBV), hepatitis C virus (HCV), hepatitis D virus (HDV) and hepatitis E virus (HEV).
What are the hepatitis viruses?
The five main viral classifications of hepatitis are hepatitis A, B, C, D, and E. A different virus is responsible for each type of viral hepatitis. The World Health Organization (WHO) estimates that 354 million people currently live with chronic hepatitis B and C globally.
Is viral hepatitis contagious?
For example, hepatitis caused by viruses usually is contagious, although many types of hepatitis are transferred mainly from person to person by blood-to-blood transfer, for example, individual sharing needles, acupuncture, sexual contact, and organ transplantation.
Which of the six hepatitis viruses is a DNA virus?
Hepatitis viruses
| Hepatitis A virus (HAV) | Hepatitis D virus (HDV) | |
|---|---|---|
| Viral family | Picornaviridae | Incertae sedis |
| Genome | (+)ssRNA | (−)ssRNA |
| Antigens | Delta antigen | |
| Transmission | Enteral | Parenteral |
Which Hepatotropic virus is a DNA virus?
Hepatitis B virus is a DNA virus with small, circular, 3200-bp sized genome that consists of four overlapping genes: S, C, P, and X. HBV is one of a family of animal viruses, hepadnaviridae (hepatotropic DNA viruses), and is classified as heapdna virus type 1.
What are non Hepatotropic viruses?
Several non-hepatotropic viruses especially belonging to Herpes family like cytomegalovirus (CMV) and Epstein-Barr virus (EBV) can also cause hepatitis [3]. In them, liver involvement is a part of the disseminated systematic disease, most often referred as non-A to non-E causes of viral hepatitis.
What is the most common hepatitis virus?
The most common types of hepatitis are A, B, and C. Hepatitis A is usually a short-term infection while hepatitis B and C can cause long-term, or chronic, infections. A person can have both hepatitis B and hepatitis C at the same time.
What is the full name of hepatitis virus?
Hepatitis B is a vaccine-preventable liver infection caused by the hepatitis B virus (HBV).
Is EBV Hepatotropic virus?
Besides acute hepatitis during primary infection, many clinical syndromes of interest for the hepatologist are associated with EBV infection. The role of EBV in the evolution of chronic hepatitis from hepatotropic viruses is considered.
What are the symptoms of a viral hepatitis virus?
• Viral hepatitis is a systemic disease caused by hepatitis viruses that produce acute inflammation of the liver clinically characterized by VIRAL HEPATITIS clinically characterized by fever, gastrointestinal symptoms like nausea, vomiting and jaundice. 14/1/2018 Dr.Tarek/[email protected]/2015 3 4.
What are the causes of Hep C virus?
2. Hepatitis viruses The causes of hepatitis are varied and include viruses, bacteria, and protozoa, as well as drugs and toxins (eg, isoniazid, carbon tetrachloride, and ethanol).
Can a PCR assay detect Hepatitis G virus?
Hepatitis G Hepatitis G is an RNA virus similar to hepatitis C and members of the flavivirus family An antibody assay can detect past, but not present, infection, and detection of acute infection with hepatitis G requires a PCR assay for viral RNA in serum. Up to 2% of volunteer blood donors are seropositive for hepatitis G RNA]
How is the hepatitis A virus spread from person to person?
Hepatitis A Virus Hepatitis A virus is an unenveloped, single-stranded RNA virus with cubic symmetry Hepatitis A Viruses is classified in a separate genus (hepatovirus) of picornaviruses 5. Hepatitis A transmission Hepatitis A virus is spread by the fecal–oral route, and outbreaks may be associated with contaminated food or water 6.