{"id":572579,"date":"2026-01-21T15:04:30","date_gmt":"2026-01-21T18:04:30","guid":{"rendered":"https:\/\/revistapesquisa.fapesp.br\/?p=572579"},"modified":"2026-01-21T15:04:30","modified_gmt":"2026-01-21T18:04:30","slug":"flu-cases-rise-with-wildfires","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/flu-cases-rise-with-wildfires\/","title":{"rendered":"Flu cases rise with wildfires"},"content":{"rendered":"<div id=\"attachment_572580\" style=\"max-width: 1150px\" class=\"wp-caption alignright vertical\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-572580 size-full\" src=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/12\/RPF-notas-fogo-gripe-2025-09-1140.jpg\" alt=\"\" width=\"1140\" height=\"675\" srcset=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/12\/RPF-notas-fogo-gripe-2025-09-1140.jpg 1140w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/12\/RPF-notas-fogo-gripe-2025-09-1140-250x148.jpg 250w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/12\/RPF-notas-fogo-gripe-2025-09-1140-700x414.jpg 700w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2025\/12\/RPF-notas-fogo-gripe-2025-09-1140-120x71.jpg 120w\" sizes=\"auto, (max-width: 1140px) 100vw, 1140px\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">Diego Cardoso \/ Picture Alliance via Getty Images <\/span>Firefighters battle flames in Kadiw\u00e9u territory, Mato Grosso do Sul, September 2024<span class=\"media-credits\">Diego Cardoso \/ Picture Alliance via Getty Images <\/span><\/p><\/div>\n<p>Another unpleasant consequence of wildfire smoke: it increases the risk of catching the flu. An analysis of 2009\u20132019 satellite data from 510 areas of Brazil associated a 13% higher incidence of influenza diagnoses with an increase in concentrations of particulate matter produced by burning biomass. The study, conducted by researchers from Monash University in Australia and the University of S\u00e3o Paulo (USP), found that almost 12% of flu cases can be attributed to this type of pollution. According to USP pathologist Paulo Saldiva, one of the authors of the study, the particles carry viruses deeper into the lungs and cause inflammation in respiratory system cells. He explains that in addition to the temporal overlap between wildfires and diagnoses, it was relatively easy to establish a correlation because fires are more frequent in warmer seasons, when flu cases are usually lower. While vaccination campaigns help reduce infections and severity, they only take place before the winter. To be effective during the dry season, this strategy would need to be rethought (<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S030438942501903X\" target=\"_blank\" rel=\"noopener\"><em>Journal of Hazardous Materials<\/em><\/a>, September 5).<\/p>\n","protected":false},"excerpt":{"rendered":"Study associates wildfires with increase in flu cases","protected":false},"author":475,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1651],"tags":[200,260],"coauthors":[785],"class_list":["post-572579","post","type-post","status-publish","format-standard","hentry","category-notes","tag-environment","tag-public-health"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/572579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=572579"}],"version-history":[{"count":1,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/572579\/revisions"}],"predecessor-version":[{"id":572592,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/572579\/revisions\/572592"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=572579"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=572579"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=572579"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=572579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}