Home About us Editorial board Ahead of print Browse Articles Search Submit article Instructions Subscribe Contacts Login 
  • Users Online: 241
  • Home
  • Print this page
  • Email this page

Previous article Browse articles Next article 
J Res Med Sci 2021,  26:66

COVID-19 and smoking: A comment

1 Private Academic Practice, Bangkok, Thailand
2 Department of Community Medicine, Dr. DY Patil University, Pune, Maharashtra, India; Department of Tropical Medicine, Hainan Medical University, Haikou, China

Date of Submission09-Apr-2020
Date of Decision20-Jun-2020
Date of Acceptance29-Jul-2020
Date of Web Publication30-Aug-2021

Correspondence Address:
Dr. Beuy Joob
Private Academic Practice, Bangkok
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jrms.JRMS_363_20

Rights and Permissions

How to cite this article:
Joob B, Wiwanitkit V. COVID-19 and smoking: A comment. J Res Med Sci 2021;26:66

How to cite this URL:
Joob B, Wiwanitkit V. COVID-19 and smoking: A comment. J Res Med Sci [serial online] 2021 [cited 2022 Dec 8];26:66. Available from: https://www.jmsjournal.net/text.asp?2021/26/1/66/325060

Dear Editor,

We found that the publication on “COVID-19 and smoking: A systematic review of the evidence” is very interesting.[1] Vardavas and Nikitara noted that “smoking is most likely associated with the negative progression and adverse outcomes of COVID-19.[1] We would like to share ideas on this specific issue on COVID-19 and smoking. There are some recent reports on this issue. Lang et al. noted that “While data on the association between COVID-19 and tobacco products is mixed, the overall health consequences of tobacco point towards increased risk of morbidity and mortality associated with the virus.[2]” Some COVID-19 patients have clear history that smoking altogether in a group is the risk behavior contributing to infection. Nevertheless, there might be other confounding risks that can promote COVID-19 transmission. According to an earlier data from Thailand, the second country that the outbreak first occurs, about 3.9% of the patients are regular smokers but there is no death in this group and the cluster of COVID-19 among smokers who have sharing smoking behavior is observed.[3] In another report from Italy, 35.5% of COVID-19 patients are smokers but there is no data on the association between smoking and mortality.[4] In that report, the lack of association between smoking- and COVId-19-related smell and taste problem is mentioned.[4] An important consideration is the lack of case–control study to address the effect of smoking on COVID-19. The data on smoking among COVID-19 are usually not available and it usually lacks for the data on the secondary smoking. The effect of getting cigarette smoke from others might not be recognized and its effect on COVID is usually interesting. Smoker usually exhales out cigarette smoke and the contaminated exhaled air can cause disease spreading.[5] It should add that smoking is not only cause poor disease course but also an important behavior promoting transmission of COVID-19. New researchers also show the possible molecular role of smoking by increasing receptor activity to severe acute respiratory syndrome coronavirus 2 virus.[6] Increase pulmonary inflammation and impaired repairing during COVID-19 illness is proposed in patients who are smokers.[7] Finally, it should also note that smoking is also a proven risk for mental problem among general people during COVID-19 outbreak situation.[8]

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.

  References Top

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. 1
Lang AE, Yakhkind A, Lang AE. COVID-19 and smoking: How and why we implemented a tobacco treatment campaign. Chest 2020 Jun 17;S0012-3692(20)31686-X. doi: 10.1016/j.chest.2020.06.013.  Back to cited text no. 2
Yasri S, Wiwanitkit V. Sharing cigarette smoking and COVID-19 outbreak in a party group. Int J Prev Med 2020;11:50.  Back to cited text no. 3
  [Full text]  
Mercante G, Ferreli F, De Virgilio A, Gaino F, Di Bari M, Colombo G, et al. Prevalence of taste and smell dysfunction in coronavirus disease 2019. JAMA Otolaryngol Head Neck Surg. 2020 Jun 18;146(8):1-6.  Back to cited text no. 4
Guan L, Zhou L, Zhang J, Peng W, Chen R. More awareness is needed for severe acute respiratory syndrome coronavirus 2019 transmission through exhaled air during non-invasive respiratory support: Experience from China. Eur Respir J. 2020 Mar 20;55(3):2000352.  Back to cited text no. 5
Kaur G, Lungarella G, Rahman I. SARS-CoV-2 COVID-19 susceptibility and lung inflammatory storm by smoking and vaping. J Inflamm (Lond) 2020;17:21.  Back to cited text no. 6
Wang Q, Sundar IK, Li D, Lucas JH, Muthumalage T, McDonough SR, et al. E-cigarette-induced pulmonary inflammation and dysregulated repair are mediated by nAChR α7 receptor: Role of nAChR α7 in SARS-CoV-2 Covid-19 ACE2 receptor regulation. Version 2. Respir Res 2020;21:154.  Back to cited text no. 7
Smith L, Jacob L, Yakkundi A, McDermott D, Armstrong NC, Barnett Y, et al. Correlates of symptoms of anxiety and depression and mental wellbeing associated with COVID-19: A cross-sectional study of UK-based respondents. Psychiatry Res 2020;291:113138.  Back to cited text no. 8


Previous article  Next article
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

  In this article

 Article Access Statistics
    PDF Downloaded119    
    Comments [Add]    

Recommend this journal