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Trovão NS, Khan SM, Lemey P, Nelson MI, Cherry JL. Comparative evolution of influenza A virus H1 and H3 head and stalk domains across host species. mBio 2024; 15:e0264923. [PMID: 38078770 PMCID: PMC10886446 DOI: 10.1128/mbio.02649-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 01/17/2024] Open
Abstract
IMPORTANCE For decades, researchers have studied the rapid evolution of influenza A viruses for vaccine design and as a useful model system for the study of host/parasite evolution. By performing an exhaustive analysis of hemagglutinin protein (HA) sequences from 49 lineages independently evolving in birds, swine, canines, equines, and humans over the last century, our work uncovers surprising features of HA evolution. In particular, the canine H3 stalk, unlike human H3 and H1 stalk domains, is not evolving slowly, suggesting that evolution in the stalk domain is not universally constrained across all host species. Therefore, a broader multi-host perspective on HA evolution may be useful during the evaluation and design of stalk-targeted vaccine candidates.
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Affiliation(s)
- Nidia S Trovão
- Fogarty International Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Sairah M Khan
- Fogarty International Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Philippe Lemey
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Martha I Nelson
- Fogarty International Center, National Institutes of Health, Bethesda, Maryland, USA
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA
| | - Joshua L Cherry
- Fogarty International Center, National Institutes of Health, Bethesda, Maryland, USA
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA
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Pollett S, Trovão NS, Tan Y, Eden JS, Halpin RA, Bera J, Das SR, Wentworth D, Ocaña V, Mendocilla SM, Álvarez C, Calisto ME, Garcia J, Halsey E, Ampuero JS, Nelson MI, Leguia M. The transmission dynamics and diversity of human metapneumovirus in Peru. Influenza Other Respir Viruses 2018; 12:508-513. [PMID: 29288526 PMCID: PMC6005599 DOI: 10.1111/irv.12537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2017] [Indexed: 12/23/2022] Open
Abstract
Background The transmission dynamics of human metapneumovirus (HMPV) in tropical countries remain unclear. Further understanding of the genetic diversity of the virus could aid in HMPV vaccine design and improve our understanding of respiratory virus transmission dynamics in low‐ and middle‐income countries. Materials & Methods We examined the evolution of HMPV in Peru through phylogenetic analysis of 61 full genome HMPV sequences collected in three ecologically diverse regions of Peru (Lima, Piura, and Iquitos) during 2008‐2012, comprising the largest data set of HMPV whole genomes sequenced from any tropical country to date. Results We revealed extensive genetic diversity generated by frequent viral introductions, with little evidence of local persistence. While considerable viral traffic between non‐Peruvian countries and Peru was observed, HMPV epidemics in Peruvian locales were more frequently epidemiologically linked with other sites within Peru. We showed that Iquitos experienced greater HMPV traffic than the similar sized city of Piura by both Bayesian and maximum likelihood methods. Conclusions There is extensive HMPV genetic diversity even within smaller and relatively less connected cities of Peru and this virus is spatially fluid. Greater diversity of HMPV in Iquitos compared to Piura may relate to higher volumes of human movement, including air traffic to this location.
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Affiliation(s)
- Simon Pollett
- University of Sydney, Sydney, NSW, Australia.,Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Nidia S Trovão
- National Institutes of Health, Bethesda, MD, USA.,Mount Sinai University, New York, NY, USA
| | - Yi Tan
- J Craig Venter Institute, Rockville, MD, USA
| | | | | | - Jayati Bera
- J Craig Venter Institute, Rockville, MD, USA
| | - Suman R Das
- J Craig Venter Institute, Rockville, MD, USA
| | | | - Victor Ocaña
- Pachitea Health Center, Ministerio de Salud, Piura, Peru
| | | | | | - Maria E Calisto
- Hospital Nacional Edgardo Rebagliati Martins, Seguro Social de Salud-EsSalud, Lima, Peru
| | | | - Eric Halsey
- US Naval Medical Research Unit No-6, Lima, Peru
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