Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009
Publisher's version (útgefin grein) Background Data collected by mobile devices can augment surveillance of epidemics in real time. However, methods and evidence for the integration of these data into modern surveillance systems are sparse. We linked call detail records (CDR) with an influenza-...
Published in: | Influenza and Other Respiratory Viruses |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hdl.handle.net/20.500.11815/1785 https://doi.org/10.1111/irv.12690 |
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/1785 2023-05-15T16:47:13+02:00 Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 Kishore, Nishant Mitchell, Rebecca Lash, Timothy L. Reed, Carrie Danon, Leon Sigmundsdóttir, Guðrún Vigfusson, Ymir Tölvunarfræðideild (HR) Department of Computer Science (RU) Tæknisvið (HR) School of Technology (RU) Háskólinn í Reykjavík Reykjavik University 2019-11-09 37-45 https://hdl.handle.net/20.500.11815/1785 https://doi.org/10.1111/irv.12690 en eng Wiley Influenza and Other Respiratory Viruses;14(1) Kishore, N., Mitchell, R., Lash, T. L., Reed, C., Danon, L., Sigmundsdottir, G., & Vigfusson, Y. (2020). Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009. Influenza and Other Respiratory Viruses, 14(1), 37–45. https://doi.org/10.1111/irv.12690 1750-2640 1750-2659 (eISSN) https://hdl.handle.net/20.500.11815/1785 Influenza and Other Respiratory Viruses doi:10.1111/irv.12690 info:eu-repo/semantics/openAccess Public Health Environmental and Occupational Health Epidemiology Pulmonary and Respiratory Medicine Infectious Diseases Big data Call detail records Case-control studies Iceland Influenza Pandemics Social networks Transmission Surveillance Viruses Airports Cellular Telephones Faraldsfræði Heimsfaraldrar Inflúensa Veirur Smitleiðir Flugvellir Farsímar Símtöl Skrár Gagnagnótt Rafræn gögn Eftirlit Samfélagsmiðlar Ísland info:eu-repo/semantics/article 2019 ftopinvisindi https://doi.org/20.500.11815/1785 https://doi.org/10.1111/irv.12690 2022-11-18T06:51:56Z Publisher's version (útgefin grein) Background Data collected by mobile devices can augment surveillance of epidemics in real time. However, methods and evidence for the integration of these data into modern surveillance systems are sparse. We linked call detail records (CDR) with an influenza-like illness (ILI) registry and evaluated the role that Icelandic international travellers played in the introduction and propagation of influenza A/H1N1pdm09 virus in Iceland through the course of the 2009 pandemic. Methods This nested case-control study compared odds of exposure to Keflavik International Airport among cases and matched controls producing longitudinal two-week matched odds ratios (mORs) from August to December 2009. We further evaluated rates of ILI among 1st- and 2nd-degree phone connections of cases compared to their matched controls. Results The mOR was elevated in the initial stages of the epidemic from 7 August until 21 August (mOR = 2.53; 95% confidence interval (CI) = 1.35, 4.78). During the two-week period from 17 August through 31 August, we calculated the two-week incidence density ratio of ILI among 1st-degree connections to be 2.96 (95% CI: 1.43, 5.84). Conclusions Exposure to Keflavik International Airport increased the risk of incident ILI diagnoses during the initial stages of the epidemic. Using these methods for other regions of Iceland, we evaluated the geographic spread of ILI over the course of the epidemic. Our methods were validated through similar evaluation of a domestic airport. The techniques described in this study can be used for hypothesis-driven evaluations of locations and behaviours during an epidemic and their associations with health outcomes. Icelandic Centre for Research Award #152620-051, an Emory University Research Council Award, NSF CAREER Award #1553579, a Leverhulme Early Career Fellowship and a hardware donation from NVIDIA Corporation. "Peer Reviewed" Article in Journal/Newspaper Iceland Opin vísindi (Iceland) Influenza and Other Respiratory Viruses 14 1 37 45 |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Public Health Environmental and Occupational Health Epidemiology Pulmonary and Respiratory Medicine Infectious Diseases Big data Call detail records Case-control studies Iceland Influenza Pandemics Social networks Transmission Surveillance Viruses Airports Cellular Telephones Faraldsfræði Heimsfaraldrar Inflúensa Veirur Smitleiðir Flugvellir Farsímar Símtöl Skrár Gagnagnótt Rafræn gögn Eftirlit Samfélagsmiðlar Ísland |
spellingShingle |
Public Health Environmental and Occupational Health Epidemiology Pulmonary and Respiratory Medicine Infectious Diseases Big data Call detail records Case-control studies Iceland Influenza Pandemics Social networks Transmission Surveillance Viruses Airports Cellular Telephones Faraldsfræði Heimsfaraldrar Inflúensa Veirur Smitleiðir Flugvellir Farsímar Símtöl Skrár Gagnagnótt Rafræn gögn Eftirlit Samfélagsmiðlar Ísland Kishore, Nishant Mitchell, Rebecca Lash, Timothy L. Reed, Carrie Danon, Leon Sigmundsdóttir, Guðrún Vigfusson, Ymir Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 |
topic_facet |
Public Health Environmental and Occupational Health Epidemiology Pulmonary and Respiratory Medicine Infectious Diseases Big data Call detail records Case-control studies Iceland Influenza Pandemics Social networks Transmission Surveillance Viruses Airports Cellular Telephones Faraldsfræði Heimsfaraldrar Inflúensa Veirur Smitleiðir Flugvellir Farsímar Símtöl Skrár Gagnagnótt Rafræn gögn Eftirlit Samfélagsmiðlar Ísland |
description |
Publisher's version (útgefin grein) Background Data collected by mobile devices can augment surveillance of epidemics in real time. However, methods and evidence for the integration of these data into modern surveillance systems are sparse. We linked call detail records (CDR) with an influenza-like illness (ILI) registry and evaluated the role that Icelandic international travellers played in the introduction and propagation of influenza A/H1N1pdm09 virus in Iceland through the course of the 2009 pandemic. Methods This nested case-control study compared odds of exposure to Keflavik International Airport among cases and matched controls producing longitudinal two-week matched odds ratios (mORs) from August to December 2009. We further evaluated rates of ILI among 1st- and 2nd-degree phone connections of cases compared to their matched controls. Results The mOR was elevated in the initial stages of the epidemic from 7 August until 21 August (mOR = 2.53; 95% confidence interval (CI) = 1.35, 4.78). During the two-week period from 17 August through 31 August, we calculated the two-week incidence density ratio of ILI among 1st-degree connections to be 2.96 (95% CI: 1.43, 5.84). Conclusions Exposure to Keflavik International Airport increased the risk of incident ILI diagnoses during the initial stages of the epidemic. Using these methods for other regions of Iceland, we evaluated the geographic spread of ILI over the course of the epidemic. Our methods were validated through similar evaluation of a domestic airport. The techniques described in this study can be used for hypothesis-driven evaluations of locations and behaviours during an epidemic and their associations with health outcomes. Icelandic Centre for Research Award #152620-051, an Emory University Research Council Award, NSF CAREER Award #1553579, a Leverhulme Early Career Fellowship and a hardware donation from NVIDIA Corporation. "Peer Reviewed" |
author2 |
Tölvunarfræðideild (HR) Department of Computer Science (RU) Tæknisvið (HR) School of Technology (RU) Háskólinn í Reykjavík Reykjavik University |
format |
Article in Journal/Newspaper |
author |
Kishore, Nishant Mitchell, Rebecca Lash, Timothy L. Reed, Carrie Danon, Leon Sigmundsdóttir, Guðrún Vigfusson, Ymir |
author_facet |
Kishore, Nishant Mitchell, Rebecca Lash, Timothy L. Reed, Carrie Danon, Leon Sigmundsdóttir, Guðrún Vigfusson, Ymir |
author_sort |
Kishore, Nishant |
title |
Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 |
title_short |
Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 |
title_full |
Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 |
title_fullStr |
Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 |
title_full_unstemmed |
Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009 |
title_sort |
flying, phones and flu: anonymized call records suggest that keflavik international airport introduced pandemic h1n1 into iceland in 2009 |
publisher |
Wiley |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.11815/1785 https://doi.org/10.1111/irv.12690 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Influenza and Other Respiratory Viruses;14(1) Kishore, N., Mitchell, R., Lash, T. L., Reed, C., Danon, L., Sigmundsdottir, G., & Vigfusson, Y. (2020). Flying, phones and flu: Anonymized call records suggest that Keflavik International Airport introduced pandemic H1N1 into Iceland in 2009. Influenza and Other Respiratory Viruses, 14(1), 37–45. https://doi.org/10.1111/irv.12690 1750-2640 1750-2659 (eISSN) https://hdl.handle.net/20.500.11815/1785 Influenza and Other Respiratory Viruses doi:10.1111/irv.12690 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/1785 https://doi.org/10.1111/irv.12690 |
container_title |
Influenza and Other Respiratory Viruses |
container_volume |
14 |
container_issue |
1 |
container_start_page |
37 |
op_container_end_page |
45 |
_version_ |
1766037295817818112 |