{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T13:12:52Z","timestamp":1793365972986,"version":"4.5.0"},"reference-count":23,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,4,18]],"date-time":"2021-04-18T00:00:00Z","timestamp":1618704000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Tropical Med Int Health"],"published-print":{"date-parts":[[2021,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>The frequency and seasonality of viruses in tropical regions are scarcely reported. We estimated the frequency of seven respiratory viruses and assessed seasonality of respiratory syncytial virus (RSV) and influenza viruses in a tropical city.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Children (age\u00a0\u2264\u00a018\u00a0years) with acute respiratory infection were investigated in Salvador, Brazil, between July 2014 and June 2017. Respiratory viruses were searched by direct immunofluorescence and real\u2010time polymerase chain reaction for detection of RSV, influenza A virus, influenza B virus, adenovirus (ADV) and parainfluenza viruses (PIV) 1, 2 and 3. Seasonal distribution was evaluated by Prais\u2013Winsten regression. Due to similar distribution, influenza A and influenza B viruses were grouped to analyse seasonality.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The study group comprised 387 cases whose median (IQR) age was 26.4 (10.5\u201350.1) months. Respiratory viruses were detected in 106 (27.4%) cases. RSV (<jats:italic>n<\/jats:italic>\u00a0=\u00a076; 19.6%), influenza A virus (<jats:italic>n<\/jats:italic>\u00a0=\u00a011; 2.8%), influenza B virus (<jats:italic>n<\/jats:italic>\u00a0=\u00a07; 1.8%), ADV (<jats:italic>n<\/jats:italic>\u00a0=\u00a05; 1.3%), PIV 1 (<jats:italic>n<\/jats:italic>\u00a0=\u00a05; 1.3%), PIV 3 (<jats:italic>n<\/jats:italic>\u00a0=\u00a03; 0.8%) and PIV 2 (<jats:italic>n<\/jats:italic>\u00a0=\u00a01; 0.3%) were identified. Monthly count of RSV cases demonstrated seasonal distribution (b3\u00a0=\u00a00.626; <jats:italic>P<\/jats:italic>\u00a0=\u00a00.003). More than half (42\/76 [55.3%]) of all RSV cases were detected from April to June. Monthly count of influenza cases also showed seasonal distribution (b3\u00a0=\u00a0\u22120.264; <jats:italic>P<\/jats:italic>\u00a0=\u00a00.032). Influenza cases peaked from November to January with 44.4% (8\/18) of all influenza cases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>RSV was the most frequently detected virus. RSV and influenza viruses showed seasonal distribution. These data may be useful to plan the best time to carry out prophylaxis and to increase the number of hospital beds.<\/jats:p><\/jats:sec>","DOI":"10.1111\/tmi.13571","type":"journal-article","created":{"date-parts":[[2021,3,5]],"date-time":"2021-03-05T13:18:40Z","timestamp":1614950320000},"page":"672-679","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Seasonality of distinct respiratory viruses in a tropical city: implications for prophylaxis"],"prefix":"10.1111","volume":"26","author":[{"given":"Ruth\u2010Kelly O.","family":"Santos","sequence":"first","affiliation":[{"name":"Postgraduate Program in Health Sciences Federal University of Bahia School of Medicine Salvador Brazil"},{"name":"Epidemiology Unit Health Secretariat Salvador Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Igor C.","family":"Borges","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Health Sciences Federal University of Bahia School of Medicine Salvador Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariana L.","family":"Souza","sequence":"additional","affiliation":[{"name":"Epidemiology Unit Health Secretariat Salvador Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maiara L.","family":"Bouzas","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Health Sciences Federal University of Bahia School of Medicine Salvador Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristiana M.","family":"Nascimento\u2010Carvalho","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Health Sciences Federal University of Bahia School of Medicine Salvador Brazil"},{"name":"Department of Pediatrics Federal University of Bahia School of Medicine Salvador Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,4,18]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(16)31593-8"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.00032-09"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.12659\/MSM.908483"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.inf.0000108193.91607.34"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1526-0542(03)00024-1"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1517-83822012000100011"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jinf.2018.10.006"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bjid.2012.09.001"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00705-013-1794-4"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0114871"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1097\/INF.0b013e31823883be"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcv.2017.07.011"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/tmi.13462"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2018-4064"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1590\/0074-0276140273"},{"key":"e_1_2_6_17_1","doi-asserted-by":"crossref","first-page":"e0155089","DOI":"10.1371\/journal.pone.0155089","article-title":"Correction: Temporal patterns of influenza A and B in tropical and temperate countries: what are the lessons for influenza vaccination?","volume":"11","author":"Caini S","year":"2016","journal-title":"PLoS One"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jinf.2019.07.008"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.mm6722a5"},{"key":"e_1_2_6_20_1","volume-title":"21st National Vaccination Campaign against Influenza. 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