Scroll down to access downloads and media. National referral pathway for the confirmatory testing of poliovirus detected in wastewater Download PHLN referral pathway for poliovirus confirmatory testing as PDF - 165 KB - 3 pages Download PHLN referral pathway for poliovirus confirmatory testing as Word - 59 KB - 3 pages Publication type: Procedure Published: 1 August 2023 Last updated: 7 December 2025 Part of a collection: PHLN general laboratory and pathology guidelines and advice