Acta Scientific Microbiology (ISSN: 2581-3226)

Research Article Volume 5 Issue 9

How Social Engagement Against Covid-19 in a Brazilian Slum Helped Mitigate Rising Statistics

Heitor Evangelista1, Sérgio J Gonçalves Junior1*, Eduardo Delfino Sodré1, Juliana Nogueira1, Rodrigo Goldenberg-Barbosa1, Newton Magalhães1, Angela MG dos Santos2, Ricardo HM Godoi3, Cesar Amaral1, Marcio Cataldo G da Silva1, Daniel A Junger de Oliveira1 and Luís Cristóvão Porto2

1Laboratory of Radioecology and Global Changes (LARAMG)/DBB/IBRAG, Rio de Janeiro State Univeristy (Uerj), Rio de Janeiro, RJ, Brazil

2Laboratory of Histocompatibility and Cryopreservation, Piquet Carneiro Polyclinic, Rio de Janeiro State Univeristy (Uerj), Rio de Janeiro, RJ, Brazil

3Environmental Engineering Department, Federal University of Paraná (UFPR), Curitiba, PR, Brazil

*Corresponding Author: Sérgio J Gonçalves Junior, LARAMG - Laboratory of Radioecology and Global Changes/DBB/IBRAG, Uerj, Pavilhão Haroldo L, Cunha/DBB/IBRAG, Maracanã, Rio de Janeiro State University, Rio de Janeiro, Brazil.

Received: May 02, 2022; Published: August 03, 2022


For many underdeveloped countries, strategies implemented by social communities allied to scientific knowledge may be a rote to attenuate the rapid spread of Covid-19 cases and allow services to the population. This work presents a joint effort collaboration between scientists and underserved community groups from a Brazilian slum/Santa Marta in Rio de Janeiro City in the fight against Covid-19. Measurements of contamination in the air near the ground and georeferencing of data of infected people were regressed with sanitization activities aiming at reducing the Covid-19 incidence. We monitored aerosol containing SARS-Cov-2 virus in outdoor ambient air using various virus collection mediums (solid, liquid, and gelatinous substrates) at different aerodynamic sizes. We implemented a local statistics survey for the Covid-19 database correlated with varying sanitization levels between April 2020 and June 2021 developed in the Santa Marta slum. We detected the SARS-CoV-2 virus in the air near the ground in diameters ranging from 0.25 to 0.5 µm, demonstrating that there is a circulation of the virus in the slum atmosphere. We demonstrate that Covid-19 cases for the Santa Marta slum were significatively lowered with improved sanitization levels (r = -0.74). Despite previous publications that discarded the use of sanitization as a relevant tool in the fight against Covid-19, our results suggest that profits can be achieved in mitigating Covid-19 in underserved community sites. Furthermore, a permanent sanitization activity may induce positive social behaviour to combat Covid-19.

Keywords: Covid-19; Virus Variants; Santa Marta Slum; Sanitization; Aerosols


  1. Comunian S., et al. “Air pollution and COVID-19: the role of particulate matter in the spread and increase of COVID-19’s morbidity and mortality”. International Journal of Environmental Research and Public Health12 (2020): 4487.
  2. Wang CC., et al. “Airborne transmission of respiratory viruses”. Science 6558 (2021): eabd9149.
  3. Wu X., et al. “Air pollution and COVID-19 mortality in the United States: Strengths and limitations of an ecological regression analysis”. Science Advances45 (2020): eabd4049.
  4. Liu Y., et al. “Aerodynamic analysis of SARS-CoV-2 in two Wuhan hospitals”. Nature7813 (2020): 557-560.
  5. Harrison AG., et al. “Mechanisms of SARS-CoV-2 transmission and pathogenesis”. Trends in Immunology (2020).
  6. “Report of the WHO-China Joint Mission on Coronavirus Disease 2019 (COVID-19)” (2020).
  7. “Coronavirus Disease 2019 (COVID-19)”. Centers for Disease Control and Prevention (2020).
  8. Ahmed W., et al. “First confirmed detection of SARS-CoV-2 in untreated wastewater in Australia: a proof of concept for the wastewater surveillance of COVID-19 in the community”. Science of The Total Environment 728 (2020): 138764.
  9. Medema G., et al. “Presence of SARS-Coronavirus-2 RNA in sewage and correlation with reported COVID-19 prevalence in the early stage of the epidemic in the Netherlands”. Environmental Science and Technology Letters7 (2020): 511-516.
  10. Wurtzer S., et al. “Time course quantitative detection of SARS-CoV-2 in Parisian wastewaters correlates with COVID-19 confirmed cases”. MedRxiv (2020).
  11. Prado T., et al. “Preliminary results of SARS-CoV-2 detection in sewerage system in Niterói municipality, Rio de Janeiro, Brazil”. Memórias do Instituto Oswaldo Cruz (2020): 115.
  12. Wu F., et al. “SARS-CoV-2 titers in wastewater foreshadow dynamics and clinical presentation of new COVID-19 cases”. Medrxiv (2020).
  13. D’Amico F., et al. “Diarrhea during COVID-19 infection: pathogenesis, epidemiology, prevention, and management”. Clinical Gastroenterology and Hepatology8 (2020): 1663-1672.
  14. Chin AW., et al. “Stability of SARS-CoV-2 in different environmental conditions”. The Lancet Microbe1 (2020): e10.
  15. “Disinfectant Use and Coronavirus (COVID-19)” (2020).
  16. Pitol Ak and Julian TR. “Community transmission of SARS-CoV-2 by surfaces: risks and risk reduction strategies”. Environmental Science and Technology Letters3 (2021): 263-269.
  17. Van Doremalen N., et al. “Aerosol and surface stability of SARS-CoV-2 as compared with SARS-CoV-1”. New England Journal of Medicine16 (2020): 1564-1567.
  18. Xu Z., et al. “Enhancing bioaerosol sampling by Andersen impactors using mineral-oil-spread agar plate”. PLoS One (2013): e56896.
  19. Hogan Jr CJ., et al. “Sampling methodologies and dosage assessment techniques for submicrometre and ultrafine virus aerosol particles”. Journal of Applied Microbiology6 (2005): 1422-1434.
  20. Łukaszuk C., et al. “Comparison of the Results of Studies of Air Pollution Fungi Using the SAS Super 100, MAS 100, and Air IDEAL”. International Journal of Environmental Research and Public Health7 (2017): 815.
  21. Tang JW., et al. “Dismantling myths on the airborne transmission of severe acute respiratory syndrome coronavirus (SARS-CoV-2)”. Journal of Hospital Infection (2021).
  22. Marr LC., et al. “Mechanistic insights into the effect of humidity on airborne influenza virus survival, transmission and incidence”. Journal of the Royal Society Interface150 (2019): 20180298.
  23. Madas BG., et al. “Deposition distribution of the new coronavirus (SARS-CoV-2) in the human airways upon exposure to cough-generated aerosol”. arXiv preprint arXiv:200505882 (2020).
  24. “Enhancing Readiness for Omicron (B.1.1.529): Technical Brief and Priority Actions for Member States” (2021).
  25. Kupferschmidt K. “Fast-spreading UK virus variant raises alarms”. Science 6524 (2021): 9-10.


Citation: Heitor Evangelista., et al. “How Social Engagement Against Covid-19 in a Brazilian Slum Helped Mitigate Rising Statistics". Acta Scientific Microbiology 5.9 (2022): 24-40 .


Copyright: © 2022 Heitor Evangelista., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Acceptance rate30%
Acceptance to publication20-30 days

Indexed In

News and Events

  • Certification for Review
    Acta Scientific certifies the Editors/reviewers for their review done towards the assigned articles of the respective journals.
  • Submission Timeline for Upcoming Issue
    The last date for submission of articles for regular Issues is July 30, 2024.
  • Publication Certificate
    Authors will be issued a "Publication Certificate" as a mark of appreciation for publishing their work.
  • Best Article of the Issue
    The Editors will elect one Best Article after each issue release. The authors of this article will be provided with a certificate of "Best Article of the Issue"
  • Welcoming Article Submission
    Acta Scientific delightfully welcomes active researchers for submission of articles towards the upcoming issue of respective journals.

Contact US