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Updated: Jun 24, 2026
11:28
Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus
Published on: October 7, 2011
Herpes viruses hedge their bets
Michael P H Stumpf1, Zoe Laidlaw, Vincent A A Jansen
1Department of Biology, University College London, United Kingdom. m.stumpf@ucl.ac.uk
Summary
Herpes viruses, like varicella zoster virus, may have evolved latency as a bet-hedging strategy. This evolutionary model explains how viruses survive in fluctuating host populations, leading to conditions like shingles.
Area of Science:
- Virology
- Evolutionary Biology
- Epidemiology
Background:
- Herpes viruses exhibit static latency, a phenomenon where they remain dormant for extended periods.
- Varicella zoster virus causes chickenpox and later shingles, with latency periods ranging from 5 to 40 years.
- The triggers for herpes virus reactivation remain largely unknown, posing a significant challenge in virology.
Purpose of the Study:
- To explain the evolutionary origins of viral latency, particularly within the herpes virus family.
- To investigate the role of bet-hedging strategies in the evolution of viral latency.
- To understand how population dynamics influence the persistence of infectious diseases.
Main Methods:
- Development of a simple evolutionary model to explain viral latency.
- Analysis of bet-hedging as a potential evolutionary strategy for viruses.
- Examination of infectious disease population dynamics in fluctuating host environments.
Main Results:
- A bet-hedging strategy provides a plausible evolutionary explanation for viral latency.
- The model demonstrates the efficiency of bet-hedging in viruses, especially herpes viruses like varicella zoster virus.
- Viral latency can be understood through the lens of population dynamics in changing host populations.
Conclusions:
- Viral latency is likely an evolved bet-hedging strategy, enhancing survival in fluctuating environments.
- This evolutionary perspective offers insights into the persistence and reactivation of herpes viruses.
- Understanding these dynamics is crucial for managing infectious diseases caused by latent viruses.
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