Recently, G. D. Bhowmick et al., have a review reported the current scenario on the possibility of faecal–oral transmission of COVID-19 and related water contamination along with the precautionary measures that need to be taken by the government as well as by the individuals with an eye on knowledge-based scientific resolution to confront the COVID-19 outbreak [1] . The researchers have discussed the major routes of SARS-CoV-2 transmission involve respiratory droplets and direct contact, the infection through faecal matter is also possible. Conventional sewage treatment methods with disinfection are expected to eradicate SARS-CoV-2. However, for densely populated countries with lower sewage treatment facilities, chances of contamination are extremely high; as SARS-CoVs can survive up to several days in untreated sewage; even for a much longer period in low-temperature regions. A round 1.8 billion people worldwide using faecal-contaminated source as drinking water, the ris...

  “ Nanotechnology-based antimicrobial and antiviral formulations can prevent SARS-CoV-2 viral dissemination, and highly sensitive biosensors and detection platforms may contribute to the detection and diagnosis of COVID-19 ” reported by Sepehr Talebian, Gordon G. Wallace, Avi Schroeder, Francesco Stellacci and Joao Conde on August 2020 in Nature Nanotechnology [1] .   Scientists around the world have made promising strides towards developing approaches to prevent COVID-19 [2] . However, there are still challenges for the development of therapeutics or vaccines, such as regulatory issues, large-scale production and deployment to the public [3] . Figure 1. Nanotechnology-based viral disinfectants work against SARS-CoV-2 by preventing viral dissemination on-air, surfaces, and protective equipment [1] . The silver lining amidst this crisis is the state of our technological advances mainly in the field of nanotechnology. So far, a significant body of work has covered t...