Wastewater surveillance is a promising tool for tracking the spread of SARS-CoV-2, the CDC said on Friday.
Many people with Covid-19 shed the virus in their faeces, so testing wastewater can help find the disease in communities.
Because increases of SARS-CoV-2 in wastewater generally occur 4 to 6 days before corresponding increases in clinical cases, wastewater surveillance can serve as an early warning of increasing Covid-19 cases and help communities prepare, according to the CDC.
Wastewater testing has been successfully used as a method for detection of other diseases, such as polio, according to the CDC.
Source: IANS
