TBS reported that the Tokyo government has begun a field survey today to study the current situation of infection with the new coronavirus by using sewage, as the virus can be detected in feces. The network said the survey is being conducted at 15 facilities in Tokyo, adding that Tokyo may be able to predict a second wave of infection by studying the amount of the virus in sewage. The network said while similar surveys are underway in France and other nations, a method of analysis has not yet been established, adding that Tokyo is planning to freeze the sewage samples and undertake the research in cooperation with the Japan Society on Water Environment.