Monkey viral pathology in the Sukhum colony and modeling human viral infections

Boris A Lapin1, Zinaida V Shevtsova2

  • 1Research Institute of Medical Primatology, Sochi, Russia.

Insights

This study details viral infections in Old World monkeys, including measles, poliomyelitis, and hepatitis A (HPA). Research on simian hemorrhagic fever (SHF) and its virus offers insights into treating human hemorrhagic fevers.

Area of Science:

  • Veterinary Virology
  • Primatology
  • Infectious Diseases

Background:

  • Old World monkeys are susceptible to various viral infections, including measles, poliomyelitis, hepatitis A (HPA), encephalomyocarditis, coronavirus, and simian hemorrhagic fever (SHF).
  • Understanding these spontaneous infections is crucial for primate health and comparative pathology.

Purpose of the Study:

  • To characterize spontaneous viral infections in Old World monkeys.
  • To reproduce experimental infections for studying pathogenesis and epidemiology.
  • To evaluate vaccine efficacy and explore therapeutic strategies for hemorrhagic fevers.

Main Methods:

  • Observation and characterization of spontaneous infections.
  • Reproduction of infections using isolated pathogens in experimental models.
  • Pathogenesis and epidemiological studies on established models.
  • Vaccine efficacy assessment for poliomyelitis, measles, and HPA.
  • Investigation of pathogenic mechanisms using the experimental SHF model.

Main Results:

  • Data on spontaneous infections including measles, poliomyelitis, hepatitis A (HPA), encephalomyocarditis, coronavirus, and simian hemorrhagic fever (SHF) are presented.
  • Experimental models allowed for the study of disease pathogenesis and epidemiology.
  • Vaccine efficacy was demonstrated for poliomyelitis, measles, and HPA.
  • The discovery of SHF and the "Sukhumi" virus was highlighted.
  • Key pathogenic mechanisms of hemorrhagic fevers were elucidated using the experimental SHF model.

Conclusions:

  • Experimental models of viral infections in Old World monkeys are valuable for studying pathogenesis, epidemiology, and vaccine efficacy.
  • The experimental SHF model provides a safe and effective platform for assessing therapies for human hemorrhagic fevers.
  • This research contributes to understanding primate viral diseases and developing treatments for dangerous hemorrhagic fevers.

Related Concept Videos

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.
25.2K
Viral Structure00:56

Viral Structure

Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
74.7K
Viral Mutations00:36

Viral Mutations

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...
39.9K
Size and Structure of Viral Genomes01:26

Size and Structure of Viral Genomes

Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
807
Viral Replication: Lytic Cycle01:20

Viral Replication: Lytic Cycle

Bacteriophages, or phages, are viruses that specifically infect bacteria. Among them, T-even bacteriophages, such as T4, exhibit a well-characterized lytic replication cycle in Escherichia coli (E. coli). This process ensures the rapid proliferation of the virus while ultimately leading to the destruction of the bacterial host.Attachment and DNA InjectionThe infection process begins with the recognition and binding of the T4 phage to the E. coli cell surface. Tail fibers of the phage...
1.7K
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
2.1K