Wastewater surveillance in Canada has been used as a tool to monitor the levels of COVID-19 in the population. Recent data shows that about 60% of the wastewater sites tracked are reporting decreasing levels of the virus. However, researchers believe that wastewater surveillance should continue even as COVID-19 cases decrease. It is seen as a valuable public health tool that can help protect against future infections. The accuracy and sensitivity of monitoring techniques have improved over time, providing more reliable data. Wastewater surveillance can also track the emergence of new strains of the virus. It is currently being used to monitor other diseases such as polio, mpox, flu, and respiratory syncytial virus. Continued surveillance is important to prepare the healthcare system for future outbreaks and to roll out protective measures. However, there is concern that monitoring efforts may be reduced due to budget constraints. Researchers are urging the government to create a national strategy to consolidate and standardize wastewater surveillance data. Border surveillance, particularly at points of entry like borders and airports, has been identified as a top priority for monitoring incoming illnesses. Overall, wastewater surveillance is considered a cost-effective and valuable tool for public health monitoring.
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