Health authorities are monitoring a Cape Town wastewater treatment plant after routine testing detected traces of two different polio-related virus strains, prompting intensified surveillance measures, even as officials stress there is no outbreak and no confirmed human case linked to the findings, Cape townEtc reports.
In an update issued yesterday, the Department of Health confirmed that the virus strains were identified during ongoing environmental monitoring conducted by the National Institute for Communicable Diseases NICD, part of broader efforts to track emerging public health risks before clinical infections surface.
Officials said the detections involved vaccine-derived poliovirus strains known as VDPV3 and nOPV2-L. Importantly, the findings were made through wastewater sampling and not through testing of any individual patient.
