ArticleJournal of medical virology2021
Low circulation of Influenza A and coinfection with SARS-CoV-2 among other respiratory viruses during the COVID-19 pandemic in a region of southern Brazil.
Article in Journal of medical virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.
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Who cites it
25 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Co-infection of SARS-CoV-2 and influenza A/B among patients with COVID-19: a systematic review and meta-analysis.BMC infectious diseases · 2025Pooled it
- Vaccination against influenza viruses reduces infection, not hospitalization or death, from respiratory COVID-19: A systematic review and meta-analysis.Journal of medical virology · 2024Pooled it
- Pooled it
- Validating and leveraging non-SARS-CoV-2 respiratory infection as a negative control outcome in a phase 3 COVID-19 vaccine trial with extended observational follow-up.American journal of epidemiology · 2026Trial
- Respiratory virus circulation during pandemic: Why were some viruses still circulating?Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025Review
- The impact of the COVID-19 pandemic on other respiratory viruses in the Haut-Ogooué Province of Gabon.IJID regions · 2025Article
- Changes in Respiratory Viruses' Activity in Children During the COVID-19 Pandemic: A Systematic Review.Journal of clinical medicine · 2025Review
- Prevalence of six respiratory pathogens among children in Chengdu, China: a multiplex PCR-based detection study.Frontiers in cellular and infection microbiology · 2025Article
- Trends of respiratory viruses and factors associated with severe acute respiratory infection in patients presenting at a university hospital: a 6-year retrospective study across the COVID-19 pandemic.Frontiers in public health · 2025Article
- Detection of community-acquired respiratory viruses during COVID-19 pandemic in subtropical region in Japan.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024Article
- Viral coinfection in hospitalized patients during the COVID-19 pandemic in Southern Brazil: a retrospective cohort study.Respiratory research · 2024Article
- Review
- The effects of the COVID-19 pandemic on community respiratory virus activity.Nature reviews. Microbiology · 2023Review
- Low prevalence of influenza viruses and predominance of A(H3N2) virus with respect to SARS-CoV-2 during the 2021-2022 season in Bulgaria.Journal of medical virology · 2023Article
- Exploring the Possible Phenomenon of Viral Interference Between the Novel Coronavirus and Common Respiratory Viruses.Journal of patient-centered research and reviews · 2023Article
- Coinfection of SARS-CoV-2 with other respiratory pathogens in outpatients from Ecuador.Frontiers in public health · 2023Article
- Changes in the Epidemiology of Respiratory Pathogens in Children during the COVID-19 Pandemic.Pathogens (Basel, Switzerland) · 2022Article
- Metagenomic analysis reveals differences in the co-occurrence and abundance of viral species in SARS-CoV-2 patients with different severity of disease.BMC infectious diseases · 2022Article
- Article
- Epidemiological Consequences of Viral Interference: A Mathematical Modeling Study of Two Interacting Viruses.Frontiers in microbiology · 2022Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
With the arrival of coronavirus disease 2019 (COVID-19) in Brazil in February 2020, several preventive measures were taken by the population aiming to avoid severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection including the use of masks, social distancing, and frequent hand washing then, these measures may have contributed to preventing infection also by other respiratory viruses. Our goal was to determine the frequencies of Influenza A and B viruses (FLUAV/FLUBV), human mastadenovirus C (HAdV-C), Enterovirus 68 (EV-68), and rhinovirus (RV) besides SARS-CoV-2 among hospitalized patients suspect of COVID-19 with cases of acute respiratory disease syndrome (ARDS) in the period of March to December 2020 and to detect possible coinfections among them. Nucleic acid detection was performed using reverse-transcription quantitative polymerase chain reaction (RT-qPCR) in respiratory samples using naso-oropharyngeal swabs and bronchoalveolar lavage. A total of 418 samples of the 987 analyzed (42.3%) were positive for SARS-CoV-2, 16 (1.62%) samples were positive for FLUAV, no sample was positive for FLUBV or EV-68, 67 (6.78%) samples were positive for HAdV-C, 55 samples were positive for RV 1/2 (26.3%) and 37 for RV 2/2 (13.6%). Coinfections were also detected, including a triple coinfection with SARS-CoV-2, FLUAV, and HAdV-C. In the present work, a very low frequency of FLUV was reported among hospitalized patients with ARDS compared to the past years, probably due to preventive measures taken to avoid COVID-19 and the high influenza vaccination coverage in the region in which this study was performed.
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