Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025
In April 2025, a human seasonal reassortant influenza A(H1N2) virus with a 7:1 genetic constellation was detected in Sweden in a patient seeking primary care for influenza-like illness. The neuraminidase gene of this virus was from A(H3N2) and the remaining genes from A(H1N1)pdm09. The patient recov...
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| Format: | Article |
| Language: | English |
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European Centre for Disease Prevention and Control
2025-08-01
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| Series: | Eurosurveillance |
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| Online Access: | https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2025.30.31.2500542 |
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| author | Neus Latorre-Margalef |
| author_facet | Neus Latorre-Margalef |
| author_sort | Neus Latorre-Margalef |
| collection | DOAJ |
| description | In April 2025, a human seasonal reassortant influenza A(H1N2) virus with a 7:1 genetic constellation was detected in Sweden in a patient seeking primary care for influenza-like illness. The neuraminidase gene of this virus was from A(H3N2) and the remaining genes from A(H1N1)pdm09. The patient recovered. No additional cases have been detected through routine surveillance. This is so far the only identified A(H1N2) reassortant among three seasonal A(H1N1)pdm09 and A(H3N2) reassortants reported in GISAID from Europe during the 2024/25 season. |
| format | Article |
| id | doaj-art-006244a7f74e440183222ba732fba44a |
| institution | Kabale University |
| issn | 1560-7917 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | European Centre for Disease Prevention and Control |
| record_format | Article |
| series | Eurosurveillance |
| spelling | doaj-art-006244a7f74e440183222ba732fba44a2025-08-20T03:40:21ZengEuropean Centre for Disease Prevention and ControlEurosurveillance1560-79172025-08-01303110.2807/1560-7917.ES.2025.30.31.2500542http://instance.metastore.ingenta.com/content/eurosurveillance/30/31Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025Neus Latorre-Margalef0https://orcid.org/0000-0001-9616-2693Unit for Laboratory Surveillance of Viral Pathogens and Vaccine Preventable Diseases, National Influenza Center, Department of Microbiology, The Public Health Agency of Sweden, Solna, SwedenIn April 2025, a human seasonal reassortant influenza A(H1N2) virus with a 7:1 genetic constellation was detected in Sweden in a patient seeking primary care for influenza-like illness. The neuraminidase gene of this virus was from A(H3N2) and the remaining genes from A(H1N1)pdm09. The patient recovered. No additional cases have been detected through routine surveillance. This is so far the only identified A(H1N2) reassortant among three seasonal A(H1N1)pdm09 and A(H3N2) reassortants reported in GISAID from Europe during the 2024/25 season.https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2025.30.31.2500542H1N2reassortantinfluenza |
| spellingShingle | Neus Latorre-Margalef Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025 Eurosurveillance H1N2 reassortant influenza |
| title | Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025 |
| title_full | Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025 |
| title_fullStr | Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025 |
| title_full_unstemmed | Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025 |
| title_short | Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025 |
| title_sort | novel influenza a h1n2 seasonal reassortant virus identified in a patient sweden april 2025 |
| topic | H1N2 reassortant influenza |
| url | https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2025.30.31.2500542 |
| work_keys_str_mv | AT neuslatorremargalef novelinfluenzaah1n2seasonalreassortantvirusidentifiedinapatientswedenapril2025 |