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Related Concept Videos

Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Arboviral Encephalitis01:25

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Viral Recombination00:57

Viral Recombination

Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...

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A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks
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Published on: June 26, 2020

[Overview on duck virus hepatitis A].

Liqian Ren1, Jing Li, Yuhai Bi

  • 1School of Life Sciences, Anhui University, Hefei 230039, Anhui, China.

Sheng Wu Gong Cheng Xue Bao = Chinese Journal of Biotechnology
|November 22, 2012
PubMed
Summary
This summary is machine-generated.

This study details duck hepatitis A virus (DHAV) evolution and disease spread. Research on DHAV is crucial for effective control strategies in China.

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Area of Science:

  • Veterinary Virology
  • Avian Pathology

Context:

  • Duck hepatitis A virus (DHAV) poses a significant threat to the poultry industry.
  • Understanding the virus's genetic background and spread is essential for disease management.

Purpose:

  • To provide a comprehensive overview of DHAV, including its nomenclature, history, and genetic evolution.
  • To update current knowledge on DHAV epidemiology, clinical manifestations, and surveillance.
  • To highlight the urgent need for further research and control measures against DHAV in China.

Summary:

  • The article reviews the nomenclature, evolutionary history, and genetic characteristics of DHAV.
  • It presents updated information on the epidemiology, clinical signs, and surveillance of DHAV infections.
  • Current research status and progress on DHAV are summarized, emphasizing the necessity of continued investigation.

Impact:

  • Provides a scientific rationale for developing and implementing effective control strategies for DHAV disease in China.
  • Aids in understanding the global genetic diversity and evolutionary trends of DHAV.
  • Supports enhanced surveillance and diagnostic efforts for DHAV in poultry populations.