Sustained detection of type 2 poliovirus in London sewage between February and July, 2022, by enhanced environmental surveillance

Authors: Dimitra Klapsa, Thomas Wilton, Andrew Zealand, Erika Bujaki, Eugene Saxentoff, Catherine Troman, Alexander G Shaw, Alison Tedcastle, Manasi Majumdar, Ryan Mate, Joyce O Akello, Shahin Huseynov, Ali Zeb , Maria Zambon, Anita Bell, José Hagan, Matthew Wade, Mary Ramsay, Nicholas Grassly, Vanessa Saliba, Javier Martin