Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host.
Tick-borne pathogen transmission is dependent upon tick number per host and the physical and temporal distribution of each feeding stage. Age-related acquired immunity to tick and pathogen may also be important but has received less attention. In this study we evaluate which of these parameters has...
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Language: | English |
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2016
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Online Access: | https://doi.org/10.1017/s0031182005008954 https://ora.ox.ac.uk/objects/uuid:1c5b88ce-f2d3-49c8-9971-8ea82650786d |
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ftuloxford:oai:ora.ox.ac.uk:uuid:1c5b88ce-f2d3-49c8-9971-8ea82650786d 2023-05-15T18:41:32+02:00 Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. Nunn, M Barton, T Wanless, S Hails, R Harris, M Nuttall, P 2016-07-28 https://doi.org/10.1017/s0031182005008954 https://ora.ox.ac.uk/objects/uuid:1c5b88ce-f2d3-49c8-9971-8ea82650786d eng eng doi:10.1017/s0031182005008954 https://ora.ox.ac.uk/objects/uuid:1c5b88ce-f2d3-49c8-9971-8ea82650786d https://doi.org/10.1017/s0031182005008954 info:eu-repo/semantics/embargoedAccess Journal article 2016 ftuloxford https://doi.org/10.1017/s0031182005008954 2022-06-28T20:07:11Z Tick-borne pathogen transmission is dependent upon tick number per host and the physical and temporal distribution of each feeding stage. Age-related acquired immunity to tick and pathogen may also be important but has received less attention. In this study we evaluate which of these parameters has the greatest impact on Great Island Virus (GIV) transmission between Ixodes uriae ticks and common guillemots (Uria aalge). The study system is well suited to investigate age-related effects because the guillemot population is naturally divided into 2 groups, older breeding and younger pre-breeding adult birds. The physical distribution and timing of adult and nymphal tick feeding was similar for both guillemot age groups. However, breeding birds were parasitized by significantly more ticks (mainly nymphs). Calculations based on tick number predict virus prevalence should be higher in ticks that have fed on breeding rather than pre-breeding birds. However, empirical evidence indicates the reverse. Protective acquired immunity to GIV infection may be the reason why GIV prevalence is actually significantly lower in ticks that have fed on breeders. Far more breeding (74%) than pre-breeding (12%) guillemots had antibodies that neutralized 1 or more GIV strains. Estimates of the force of infection support the view that pre-breeding birds experience higher rates of virus infection than breeding birds. The results indicate age-related acquired immunity is a key factor in GIV transmission and highlight the need to consider age-related effects and host immunity when undertaking quantitative studies of tick-borne pathogen transmission. Article in Journal/Newspaper Uria aalge uria ORA - Oxford University Research Archive Parasitology 132 02 241 |
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Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
English |
description |
Tick-borne pathogen transmission is dependent upon tick number per host and the physical and temporal distribution of each feeding stage. Age-related acquired immunity to tick and pathogen may also be important but has received less attention. In this study we evaluate which of these parameters has the greatest impact on Great Island Virus (GIV) transmission between Ixodes uriae ticks and common guillemots (Uria aalge). The study system is well suited to investigate age-related effects because the guillemot population is naturally divided into 2 groups, older breeding and younger pre-breeding adult birds. The physical distribution and timing of adult and nymphal tick feeding was similar for both guillemot age groups. However, breeding birds were parasitized by significantly more ticks (mainly nymphs). Calculations based on tick number predict virus prevalence should be higher in ticks that have fed on breeding rather than pre-breeding birds. However, empirical evidence indicates the reverse. Protective acquired immunity to GIV infection may be the reason why GIV prevalence is actually significantly lower in ticks that have fed on breeders. Far more breeding (74%) than pre-breeding (12%) guillemots had antibodies that neutralized 1 or more GIV strains. Estimates of the force of infection support the view that pre-breeding birds experience higher rates of virus infection than breeding birds. The results indicate age-related acquired immunity is a key factor in GIV transmission and highlight the need to consider age-related effects and host immunity when undertaking quantitative studies of tick-borne pathogen transmission. |
format |
Article in Journal/Newspaper |
author |
Nunn, M Barton, T Wanless, S Hails, R Harris, M Nuttall, P |
spellingShingle |
Nunn, M Barton, T Wanless, S Hails, R Harris, M Nuttall, P Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. |
author_facet |
Nunn, M Barton, T Wanless, S Hails, R Harris, M Nuttall, P |
author_sort |
Nunn, M |
title |
Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. |
title_short |
Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. |
title_full |
Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. |
title_fullStr |
Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. |
title_full_unstemmed |
Tick-borne Great Island Virus: (II) Impact of age-related acquired immunity on transmission in a natural seabird host. |
title_sort |
tick-borne great island virus: (ii) impact of age-related acquired immunity on transmission in a natural seabird host. |
publishDate |
2016 |
url |
https://doi.org/10.1017/s0031182005008954 https://ora.ox.ac.uk/objects/uuid:1c5b88ce-f2d3-49c8-9971-8ea82650786d |
genre |
Uria aalge uria |
genre_facet |
Uria aalge uria |
op_relation |
doi:10.1017/s0031182005008954 https://ora.ox.ac.uk/objects/uuid:1c5b88ce-f2d3-49c8-9971-8ea82650786d https://doi.org/10.1017/s0031182005008954 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.1017/s0031182005008954 |
container_title |
Parasitology |
container_volume |
132 |
container_issue |
02 |
container_start_page |
241 |
_version_ |
1766231061676687360 |