The recent COVID-19 pandemic and coronaviruses have been thrust into the lives of humans around the globe. Several concerns of the scientific community, authorities and common people have been aroused concerning the prophylaxis measures that need to be taken in order to safeguard public health. Among others, the possibility of a faecal—oral route, and consequent waterborne or foodborne transmission, have been given little attention. Ground zero was the seafood market of Huanan in Wuhan, China; therefore, it was quite logical at the time to assume a certain degree of relationship between water, seafood and SARS–CoV–2. In this manuscript, a critical review of the current literature concerning these routes of transmission is made. The main questions discussed are whether (i) SARS–CoV–2 can infect food animals, (ii) it can be detected in water, retaining its infectivity for the necessary amount of time, (iii) there is a possibility of contamination of food by SARS–CoV–2 through its various production processes and (iv) there is evidence of foodborne or waterborne transmission.
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