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Human Virome

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The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible...
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A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
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Arboviral Encephalitis01:25

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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...
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Viral Hepatitis I: Introduction01:28

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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...
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Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
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Human bocavirus: lessons learned to date.

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Human bocavirus (HBoV), a parvovirus linked to respiratory illness in children, requires further research. Understanding its role as a pathogen is crucial, despite challenges in cell culture and Koch

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Area of Science:

  • Virology
  • Pediatric Infectious Diseases
  • Molecular Biology

Background:

  • Human bocavirus (HBoV) identified in 2005 as a cause of pediatric respiratory infections.
  • Significant research has explored HBoV's clinical impact and molecular characteristics.
  • HBoV is difficult to culture, complicating etiological confirmation.

Purpose of the Study:

  • To review key advancements in HBoV research.
  • To identify outstanding questions regarding HBoV's role in human disease.

Main Methods:

  • Comprehensive literature review of HBoV studies.
  • Analysis of clinical and molecular biology findings.

Main Results:

  • Summary of established knowledge on HBoV detection and clinical significance.
  • Highlighting the ongoing challenges in HBoV cell culture and etiological proof.

Conclusions:

  • HBoV is a significant subject of virological and clinical research.
  • Further investigation is needed to definitively establish HBoV as a human pathogen.
  • Addressing current research gaps will improve understanding of HBoV's role in disease.