Officials have warned of community spread after traces of poliovirus were found in London sewage
Traces of the virus causing poliomyelitis have been found in sewage samples in north and east London, the UK Health Security Agency (UKHSA) said on Wednesday. The authorities believe the virus was derived from a live vaccine still used in some countries and brought to the UK by a traveler from abroad. While no incidents of community spread have yet been found,…
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