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Published on: June 4, 2016
Mimiviridae, Marseilleviridae, and virophages as emerging human pathogens causing healthcare-associated infections
Anton G Kutikhin1, Arseniy E Yuzhalin2, Elena B Brusina3
1Department of Epidemiology, Kemerovo State Medical Academy, Kemerovo, Russian Federation ; Central Research Laboratory, Kemerovo State Medical Academy, Kemerovo, Russian Federation ; Research Institute for Complex Issues of Cardiovascular Diseases under the Siberian Branch of the Russian Academy of Medical Sciences, Kemerovo, Russian Federation.
Aim:
During the last decade it became obvious that viruses belonging to Mimiviridae and Marseilleviridae families (order Megavirales), may be potential causative agents of pneumonia. Thus, we have performed a review of the association of Mimiviridae, Marseilleviridae, and virophages with pneumonia, particularly healthcare-associated pneumonia, and other infections of the respiratory tract.
Results And Discussion:
According to the analysis of the published articles, viruses belonging to Mimiviridae family can be potential agents of both community-acquired and healthcare-associated pneumonia. In particular, these viruses may be associated with poor outcome in patients of intensive care units. The exact mechanism of their pathogenicity, however, still remains unclear. The discrepancies between the results obtained by serological and genomic methods could be explained by the high polymorphism of nucleotide sequences of Mimiviridae family representatives. Further investigations on the Mimiviridae pathogenicity and on the determination of Mimiviridae-caused pneumonia risk groups are required. However, the pathogenicity of the viruses belonging to Marseilleviridae family and virophages is unclear up to now.
Insights
Viruses from the Mimiviridae family are potential causes of pneumonia, including healthcare-associated pneumonia, and may worsen outcomes in intensive care unit patients. Further research is needed to understand their exact role in respiratory infections.
Area of Science:
- Virology
- Infectious Diseases
- Respiratory Medicine
Background:
- Viruses within the Mimiviridae and Marseilleviridae families (order Megavirales) have emerged as potential contributors to pneumonia.
- The role of these viral families, along with virophages, in respiratory tract infections, especially healthcare-associated pneumonia, warrants investigation.
Purpose of the Study:
- To review the association of Mimiviridae, Marseilleviridae, and virophages with pneumonia.
- To explore their potential role in healthcare-associated pneumonia and other respiratory infections.
Main Methods:
- Literature review of published articles.
- Analysis of studies investigating viral associations with pneumonia.
Main Results:
- Mimiviridae viruses are implicated as potential agents of both community-acquired and healthcare-associated pneumonia.
- These viruses may be linked to adverse outcomes in intensive care unit patients.
- The pathogenicity mechanisms and discrepancies in detection methods for Mimiviridae remain unclear.
Conclusions:
- Mimiviridae viruses are potential causative agents of pneumonia, particularly in intensive care settings.
- Further research is essential to elucidate Mimiviridae pathogenicity and identify risk groups.
- The role of Marseilleviridae viruses and virophages in pneumonia remains undetermined.
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