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 Table of Contents  
LETTER TO EDITOR
Year : 2022  |  Volume : 17  |  Issue : 3  |  Page : 809

COVID and the loss of smell


1 Private Medical Consultant Center, 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 Submission23-Apr-2020
Date of Decision01-Jun-2020
Date of Acceptance29-Oct-2020
Date of Web Publication2-Nov-2022

Correspondence Address:
Dr. Rujittika Mungmungpuntipantip
Private Medical Consultant Center, Bangkok
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jdmimsu.jdmimsu_153_20

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How to cite this article:
Mungmungpuntipantip R, Wiwanitkit V. COVID and the loss of smell. J Datta Meghe Inst Med Sci Univ 2022;17:809

How to cite this URL:
Mungmungpuntipantip R, Wiwanitkit V. COVID and the loss of smell. J Datta Meghe Inst Med Sci Univ [serial online] 2022 [cited 2023 Feb 4];17:809. Available from: http://www.journaldmims.com/text.asp?2022/17/3/809/360181



Respected Sir,

“The loss of smell related searches during COVID-19 outbreak” is a very interesting issue.[1] There are limited data on this clinical problem. Recently, Walker et al. concluded that “There is a strong correlation between the frequency of searches for smell-related information and the onset of COVID-19.”[1] The Google Trends study is not a confirmation of the existence of the problem. The basic principle of “Google Trends” is tracking search activity, but it cannot give the details on the purpose of search. Transparency is the main problem in Google Trends research.[2] Reproducibility analysis is necessary for any research using Google Trends.[2] Nevertheless, this study provides useful preliminary data for further research. As noted by Xydakis et al., the loss of smell might be an important clinical problem but little recognized.[3] Lechien et al. noted that anosmia might occur independent of nasal symptoms in patients with COVID-19.[4] Here, the authors would like to share additional data from Thailand, the second country in the timeline of the emerging disease occurrence.[5] Considering 2579 patients in Thailand (April 13, 2020), there is no report on loss of smell. No patient presented with abnormal olfactory function. It is not clear whether the pathogen can directly affect olfactory cells. This is an interesting question for further research.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Walker A, Hopkins C, Surda P. Use of Google Trends to investigate loss-of-smell-related searches during the COVID-19 outbreak. Int Forum Allergy Rhinol 2020;10:839-47.  Back to cited text no. 1
    
2.
Nuti SV, Wayda B, Ranasinghe I, Wang S, Dreyer RP, Chen SI, et al. The use of Google Trends in health care research: A systematic review. PLoS One 2014;9:e109583.  Back to cited text no. 2
    
3.
Xydakis MS, Dehgani-Mobaraki P, Holbrook EH, Geisthoff UW, Bauer C, Hautefort C, et al. Smell and taste dysfunction in patients with COVID-19. Lancet Infect Dis 2020;20:1015-6.  Back to cited text no. 3
    
4.
Lechien JR, Chiesa-Estomba CM, De Siati DR, Horoi M, Le Bon SD, Rodriguez A, et al. Olfactory and gustatory dysfunctions as a clinical presentation of mild-to-moderate forms of the coronavirus disease (COVID-19): A multicenter European study. Eur Arch Otorhinolaryngol 2020;277:2251-61.  Back to cited text no. 4
    
5.
Yasri S, Wiwanitkit V. Editorial: Wuhan coronavirus outbreak and imported case. Adv Trop Med Pub Health Int 2019;9:1-2.  Back to cited text no. 5
    




 

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