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Possible modes of transmission of Novel coronavirus SARS-CoV-2: a review
Richa Mukhra1, Kewal Krishan2, Tanuj Kanchan3
1Department of Anthropology (UGC Centre of Advanced Study), Panjab University, Sector-14, Chandigarh, India. richa_mukhra90@yahoo.com.
Introduction:
The widespread outbreak of the novel SARS-CoV-2 has raised numerous questions about the origin and transmission of the virus. Knowledge about the mode of transmission as well as assessing the effectiveness of the preventive measures would aid in containing the outbreak of the coronavirus. Presently, respiratory droplets, physical contact and aerosols/air-borne have been reported as the modes of SARS-CoV-2 transmission of the virus. Besides, some of the other possible modes of transmission are being explored by the researchers, with some studies suggesting the viral spread through fecal-oral, conjunctival secretions, flatulence (farts), sexual and vertical transmission from mother to the fetus, and through asymptomatic carriers, etc. Aim: The primary objective was to review the present understanding and knowledge about the transmission of SARS-CoV-2 and also to suggest recommendations in containing and preventing the novel coronavirus.
Methods:
A review of possible modes of transmission of the novel SARS-CoV-2 was conducted based on the reports and articles available in PubMed and ScienceDirect.com that were searched using keywords, 'transmission', 'modes of transmission', 'SARS-CoV-2', 'novel coronavirus', and 'COVID-19'. Articles referring to air-borne, conjunctiva, fecal-oral, maternal-fetal, flatulence (farts), and breast milk transmission were included, while the remaining were excluded.
Result And Conclusion:
The modes of transmission linked to SARS-CoV-2 were identified and the available literature on each of these is described in detail in view of the possibilities of viral transmission through various modes of transmission. The review provides updated and necessary information on the possible modes of transmission for the health care workers and the lay public under one umbrella that can also be considered during framing guidelines in order to prevent and control the viral spread.
Insights
This review explores the various transmission routes of SARS-CoV-2, including respiratory droplets, aerosols, and other potential pathways like fecal-oral and vertical transmission. Understanding these modes is crucial for effective prevention and control of the novel coronavirus (COVID-19).
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- The novel SARS-CoV-2 outbreak necessitates a comprehensive understanding of its transmission dynamics.
- Identifying transmission routes is key to developing effective containment strategies for COVID-19.
Purpose of the Study:
- To review current knowledge on SARS-CoV-2 transmission modes.
- To provide updated information for healthcare workers and the public.
- To suggest recommendations for preventing and controlling the spread of the novel coronavirus.
Main Methods:
- A literature review was conducted using PubMed and ScienceDirect.
- Keywords included 'transmission', 'modes of transmission', 'SARS-CoV-2', 'novel coronavirus', and 'COVID-19'.
- Articles focusing on air-borne, conjunctival, fecal-oral, maternal-fetal, flatulence, and breast milk transmission were included.
Main Results:
- Identified and detailed various SARS-CoV-2 transmission modes.
- Described the available literature on each transmission route.
- Consolidated information on possible transmission pathways for broader accessibility.
Conclusions:
- The review provides essential, updated information on SARS-CoV-2 transmission.
- This knowledge can inform the development of public health guidelines.
- Effective prevention and control of COVID-19 rely on understanding all transmission routes.
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