Poliovirus present in sewage samples in London

A sort of poliovirus has been detected in sewage samples in London, prompting the well being authorities in Britain to challenge a warning, AFP reported on Wednesday.

The illness was totally eradicated within the nation 20 years in the past and no instances of polio have been discovered since then. The final case of untamed polio was confirmed in 1984 within the United Kingdom. In 2003, the nation was declared polio-free.

The UK Health Security Agency stated samples from the Beckton Sewage Treatment Works in London examined constructive for vaccine-derived poliovirus sort 2. “On rare occasions, it can cause serious illness, such as paralysis, in people who are not fully vaccinated,” it stated.

The poliovirus was detected throughout a routine surveillance of the disease, the World Health Organization stated.

“The Global Polio Laboratory Network has confirmed the isolation of type 2 vaccine-derived poliovirus, or VDPV2, from environmental samples in London,” the worldwide well being physique stated on Wednesday. “It is important to note that the virus has been isolated from environmental samples only – no associated cases of paralysis have been detected.”

Unrelated polioviruses are detected in sewage samples within the nation yearly, the UK Health Security Agency stated. These are from individuals who take oral polio vaccine out of the country and journey to the UK. These people can “briefly shed traces of the vaccine-like poliovirus in their faeces”, it added.

However, samples detected between February and May had the identical origin and have been associated.

“The detection of a VDPV2 suggests it is likely there has been some spread between closely-linked individuals in North and East London and that they are now shedding the type 2 poliovirus strain in their faeces,” the company stated.

Additional sewage samples from the primary wastewater therapy plant have been despatched for evaluation, the World Health Organization stated.

The world well being physique warned that any sort of poliovirus wherever is a “threat to children everywhere”.

The UK Health Security Agency, nonetheless, stated that vaccine-derived poliovirus is uncommon and its total threat to the general public is “extremely low”.

“Vaccine-derived poliovirus has the potential to spread, particularly in communities where vaccine uptake is lower,” stated Dr Vanessa Saliba, marketing consultant epidemiologist on the company. “Most of the UK population will be protected from vaccination in childhood, but in some communities with low vaccine coverage, individuals may remain at risk.”

The National Health Service in London stated that the majority residents are totally protected towards polio.

“But the NHS will begin reaching out to parents of children aged under five in London who are not up to date with their polio vaccinations to invite them to get protected,” stated Jane Clegg, chief nurse on the National Health Service within the metropolis.

Healthcare professionals have been directed to research in addition to report individuals displaying any polio-related signs.

What the CDC says

According to the Centers for Disease Control and Prevention, the poliovirus is contagious and might infect an individual’s spinal wire, leading to paralysis.


  • Sore throat
  • Fever
  • Tiredness
  • Nausea
  • Headache
  • Stomach ache
  • Paresthesia (feeling of pins and needles within the legs)
  • Meningitis
  • Paralysis

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