Feline Retroviral Infection Dynamics
Summary
Feline retroviral infection dynamics encompass viral entry via envelope glycoprotein–receptor interactions, reverse transcription of the viral RNA genome and integration of proviral DNA into host chromosomes. The two principal retroviruses affecting cats, feline leukaemia virus (FeLV) and feline immunodeficiency virus (FIV), display distinct tropisms and disease progression profiles. Following exposure, some cats develop progressive infections with persistent viraemia and immunosuppression or neoplasia, while others mount effective immune responses that lead to regressive or abortive outcomes. Host determinants—including genetic resistance, the influence of endogenous retroviral elements and the nature of humoral and cellular immune responses—shape infection courses, yielding focal, abortive, regressive or progressive states. Understanding the interplay between viral recombination, proviral latency and host immunity is fundamental for predicting outbreak dynamics, guiding surveillance and optimising preventive and therapeutic strategies.
Research from Nature Portfolio
Recent studies have employed longitudinal surveillance in wild felid populations to elucidate FeLV transmission dynamics over extended timescales. A fourteen-year survey in the Iberian lynx demonstrated that FeLV circulates enzootically at low prevalence, with most individuals exhibiting regressive infections characterised by proviral persistence without antigenemia. Sporadic viraemic cases were observed yet were frequently contained by host immune mechanisms, suggesting a capacity for natural control among non-domestic hosts. These findings underscore the value of continuous monitoring in vulnerable species and provide a model for understanding host–virus equilibrium under conditions of conservation concern.
Feline Retroviral Infection Dynamics publication trend
The graph below shows the total number of articles in feline retroviral infection dynamics across all publications each year (not limited to Nature Index journals).
Technical terms
Retrovirus: A genus of enveloped RNA viruses that reverse transcribe their genome into DNA for integration into the host cell nucleus.
Provirus: Viral DNA form integrated into the host genome following reverse transcription.
Enzootic: The constant presence of an infectious agent within a given animal population in a defined area.
Regressive infection: A host outcome in which proviral DNA persists without active viraemia or antigen production and clinical disease is absent.
Recombination: Genetic exchange between viral genomes, often between exogenous and endogenous elements, leading to novel viral variants.
Virus-like particle (VLP): A non-infectious assembly of structural viral proteins forming a particle that mimics native virions for vaccine applications.
References
- Exploring FeLV-Gag-Based VLPs as a New Vaccine Platform—Analysis of Production and Immunogenicity. International Journal of Molecular Sciences (2023).
- Long-term surveillance of the feline leukemia virus in the endangered Iberian lynx (Lynx pardinus) in Andalusia, Spain (2008–2021). Scientific Reports (2024).
- Multiple recombination events between endogenous retroviral elements and feline leukemia virus. Journal of Virology (2024).
- Prevalence of Different Courses of Feline Leukaemia Virus Infection in Four European Countries. Viruses (2023).
- Clinical Aspects of Feline Retroviruses: A Review. Viruses (2012).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.