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 Table of Contents  
LETTER TO EDITOR
Year : 2022  |  Volume : 13  |  Issue : 1  |  Page : 72

Understanding the association between smoking and corona virus disease 2019


1 Medical Education Unit Coordinator and Member of the Institute Research Council, Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth – Deemed to be University, Ammapettai, Nellikuppam, Chengalpet District, Tamil Nadu, India
2 Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth – Deemed to be University, Ammapettai, Nellikuppam, Chengalpet District, Tamil Nadu, India

Date of Submission10-Jul-2020
Date of Acceptance07-Aug-2020
Date of Web Publication27-Apr-2022

Correspondence Address:
Saurabh RamBihariLal Shrivastava
Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV) – Deemed to be University, Tiruporur - Guduvancherry Main Road, Ammapettai, Nellikuppam, Chengalpet District - 603108, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijpvm.IJPVM_329_20

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How to cite this article:
Shrivastava SR, Shrivastava PS. Understanding the association between smoking and corona virus disease 2019. Int J Prev Med 2022;13:72

How to cite this URL:
Shrivastava SR, Shrivastava PS. Understanding the association between smoking and corona virus disease 2019. Int J Prev Med [serial online] 2022 [cited 2022 Oct 3];13:72. Available from: https://www.ijpvmjournal.net/text.asp?2022/13/1/72/344220



Dear Editor,

The Corona Virus Disease-2019 (COVID-19) pandemic has resulted in alarming health outcomes across the world and there is an immense need to take measures to contain the spread of the infection. As of 25 July 2020, 15581009 cases and 635173 deaths have been reported in 216 affected nations and territories and the global case fatality rate stands at 4.1%.[1]

The epidemiological analysis of the reported deaths revealed that the probability of an adverse outcome, including death increases enormously in two categories of people, namely the elderly and those who are suffering from pre-existing comorbid illnesses.[2] Despite these initial estimates and trends, the association between smoking and COVID-19 is still not clear.[3] However, recently it has been proposed that during the act of smoking, the frequency of our fingers (which might be carrying the virus) touching our lips increases, and thus smokers are more vulnerable to acquire the infection, in contrast to the nonsmokers.[3] Further, as there is a definite possibility that smokers share their cigarettes with each other and thus the possibility of community transmission of the infection can also be not ruled out.[3]

On a similar note, we are not very much sure about the clinical attributes of the disease or even the prognostic factors. In general, the habit of smoking has been linked with poor respiratory outcomes (like reduced lung capacity, lung cancer, chronic bronchitis, etc.) and reduced immunity, and as COVID-19 has been linked with the development of respiratory distress or pneumonia, multiple hypotheses have been proposed to suggest a link between smoking and the outcomes of the novel infection.[3],[4] The findings of a systematic review concluded that COVID-19 patients who are current smokers have a higher probability of developing severe symptoms, required the support of mechanical ventilation, and admission to the intensive care units in hospitals.[4] The potential reasons for such clinical outcomes could be due to the possibility that smokers might be already suffering from some form of lung disease or reduced lung volumes, which become really crucial determinants in having a favorable treatment outcome of COVID-19 infection.[2],[3],[4]

In conclusion, the initially available evidence from COVID-19 patients has suggested that the habit of smoking plays an important role in the acquisition of COVID-19 and is even linked with poor treatment outcomes.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
World Health Organization. Coronavirus disease 2019 (COVID-19) Situation Report – 187. 2020. Available from: https://www.who.int/docs/default-source/coronaviruse/situation-reports/20200725-covid-19-sitrep-187.pdf?sfvrsn=1ede1410_2. [Last accessed on 2020 Jul 26].  Back to cited text no. 1
    
2.
Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, et al. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet 2020;395:497-506.  Back to cited text no. 2
    
3.
World Health Organization. Q&A on smoking and COVID-19. 2020. Available from: https://www.who.int/news-room/q-a-detail/q-a-on-smoking-and-covid-19. [Last accessed on 2020 Jul 26].  Back to cited text no. 3
    
4.
Vardavas CI, Nikitara K. COVID-19 and smoking: A systematic review of the evidence. Tob Induc Dis 2020;18:20.  Back to cited text no. 4
    




 

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