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Persistent hantavirus infections: characteristics and mechanisms
1Virology Divn, US Army Medical Research Institute of Infectious Diseases, 1301 Ditto Avenue, Fort Detrick, MD 21702-5011, USA.
Abstract:
Hantaviruses include serious human pathogens that are maintained in nature in persistently infected rodents and that can also persistently infect cultured mammalian cells, causing little or no cytopathology. The mechanisms of hantavirus persistence are only beginning to be explored. Recent data point to subtle changes in the viral genome that might result in the differential regulation of replication and lead to persistence.
Insights
Hantaviruses cause serious disease but persist in hosts with minimal cell damage. Subtle viral genome changes may alter replication, enabling this persistent infection.
Area of Science:
- Virology
- Infectious Diseases
- Molecular Biology
Background:
- Hantaviruses are significant human pathogens.
- They establish persistent infections in rodents and mammalian cells with low cytopathology.
- Mechanisms underlying hantavirus persistence are not well understood.
Purpose of the Study:
- To explore the mechanisms of hantavirus persistence.
- To investigate how hantaviruses maintain long-term infections in hosts.
Main Methods:
- Analysis of viral genome.
- Investigation of replication regulation.
Main Results:
- Subtle alterations in the hantavirus genome are observed.
- These genomic changes may lead to differential regulation of viral replication.
Conclusions:
- Differential regulation of replication due to genomic changes is a potential mechanism for hantavirus persistence.
- Further research is needed to fully elucidate hantavirus persistence strategies.