SBV Journal of Basic, Clinical and Applied Health Science

Register      Login

VOLUME 5 , ISSUE 1 ( January-March, 2022 ) > List of Articles


COVID-19 Pandemic and Contact Tracing

Anmol Ujlain

Keywords : Contact tracing, COVID-19 pandemic, World Health Organization

Citation Information : Ujlain A. COVID-19 Pandemic and Contact Tracing. 2022; 5 (1):22-24.

DOI: 10.5005/JP-JOURNALS-10082-03140

License: CC BY-NC 4.0

Published Online: 04-06-2022

Copyright Statement:  Copyright © 2022; The Author(s).


The coronavirus disease-2019 (COVID-19), which caused loss of massive lives and is still continuing to do so, was initially observed to cause severe illness and deaths in Wuhan (China) around December of 2019. The virus spread at a very fast pace all around the world extensively which made the World Health Organization (WHO) to declare a pandemic on March 11, 2020. Contract tracing is an effective method for containment of infectious like coronavirus disease. It is a method in which a lead case with confirmed COVID infection is enquired about the people he contacted during the period when he was possibly infective as the contacts were at a very high risk of obtaining infection from the lead case. The contacts are then traced and counseled about the risk of infection, quarantined, and tested if necessary as per the countries testing guidelines. Contact tracing is an efficacious method which can prevent the transmission of infection by identification of infected individuals, their isolation and care depending upon the severity of the disease (home isolation/hospitalization), and also investigation of the individuals which were exposed to them and isolating them for the required period if necessary so that virus transmission can be stopped. To conclude, contact tracing is definitely an important measure to control, prevention as well as the spread of coronavirus disease as respiratory droplets are the main form of spread of the virus. It is equally effective against all the strains of the virus irrespective of its virulence.

PDF Share
  1. World Health Organization. Novel Coronavirus–China (2020); 2020. Available from: [Last accessed March 19, 2022].
  2. Data Evaluation and Learning for Viral Epidemics (DELVE) initiative. Test, trace, isolate. London: Royal Society; 2020. Available from:
  3. Abbott S, Hellewell J, Thompson RN, Sherratt K, Gibbs HP, Bosse NI, et al. Estimating the time-varying reproduction number of SARS-CoV-2 using national and subnational case counts. Wellcome Open Res 2020;5:112. DOI: 10.12688/wellcomeopenres.16006.1.
  4. Cowling BJ, Ali ST, Ng TWY, Tsang TK, Li JCM, Fong MW, et al. Impact assessment of non-pharmaceutical interventions against coronavirus disease 2019 and influenza in Hong Kong: an observational study. Lancet Public Health 2020;5:e279–e288. DOI: 10.1016/S2468-2667(20)30090-6.
  5. Government of the Republic of Korea. Flattening the curve on COVID-19: how Korea responded to a pandemic using ICT. Seoul: Government of Korea; 2020 [Last accessed March 19, 2022].
  6. Hellewell J, Abbott S, Gimma A, Bosse NI, Jarvis CI, Russell TW, et al. Feasibility of controlling COVID-19 outbreaks by isolation of cases and contacts. Lancet Global Health 2020;8(4):e488–e496. DOI: 10.1016/S2214-109X(20)30074-7.
  7. World Health Organization. Coronavirus disease (COVID-19): contact tracing for responders. 2021. Available from: [Last accessed March 19, 2022].
  8. Livemint. “Govt launches ‘Aarogya Setu’, a coronavirus tracker app: all you need to know”; 2020. Available from: [Last accessed March 19, 2022].
  9. Ranisch R, Nijsingh N, Ballantyne A, Buyx A, Friedrich O, Hendl T, et al. Ethics of digital contact tracing apps for the Covid-19 pandemic response. Kompetenznetz Public Health COVID-19; 2020. Available from:
  10. Ferretti L, Wymant C, Kendall M, Zhao L, Nurtay A, Abeler-Dörner L,et al. Quantifying SARS–CoV-2 transmission suggests epidemic control with digital contact tracing. Science 2020;368(6491):eabb6936. DOI: 10.1126/science.abb6936.
  11. World Health Organization. 2019 Novel Coronavirus (2019-nCoV): strategic preparedness and response plan. Geneva: WHO Press; 2020. p. 1–20 [Last accessed March 19, 2022].
  12. Salathé M, Althaus CL, Neher R, Stringhini S, Hodcroft E, Fellay J, et al. COVID-19 epidemic in Switzerland: on the importance of testing, contact tracing and isolation. Swiss Med Wkly 2020;150:w20225. DOI: 10.4414/smw.2020.20225.
  13. World Health Organization. Home care for patients with suspected novel coronavirus (nCoV) infection presenting with mild symptoms and management of contacts: interim guidance. Geneva: WHO Press; 2020. p. 1–3 [Last accessed March 19, 2022].
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.