Fight to contain polio outbreak as hunt for source begins after first traces detected in February

THE fight to contain polio infections has started in the UK as health chiefs launch an investigation to find the source of the illness.

Experts have detected the bug in sewage samples in London and have urged people to check their jabs are up to date.

fight to contain polio outbreak as hunt for source begins after first traces detected in february

The last case of polio being contracted in Britain was in 1984 and the country was declared polio-free in 2003Credit: Getty

The UK Health Security Agency (UKHSA) has launched an investigation to protect the public from the spread.

In the report, experts warned that the virus had been detected in samples from the London Beckon Sewage Treatment Works as early as February.

Since then, the virus has continued to evolve and is now classed as a  ‘vaccine-derived’ poliovirus type 2 (VDPV2).

Medics said that on rare occasions, this can cause serious illness such as paralysis in those who are not fully vaccinated.

The paper, published yesterday stated: “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 virus has only been detected in sewage samples and no associated cases of paralysis have been reported – but investigations will aim to establish if any community transmission is occurring.”

Head of the vaccine epidemiology research group at Imperial College London, Prof Nicholas Grassly said there is concern that the virus may be circulating locally in London and could spread more widely.

Medics yesterday warned that the emergence of polio in the UK reminds us that it has not yet been eradicated.

The last case of polio being contracted in Britain was in 1984 and the country was declared polio-free in 2003.

Before a vaccine was introduced in the 1950s, epidemics would result in thousands of people being paralysed annually and hundreds of deaths.

Experts believe a traveller – likely from Pakistan, Afghanistan or Nigeria – shed the virus in their stools after being given the oral polio inoculation.

But the bug has now spread to others after mutating, with the same strain being repeatedly detected in sewage samples.

Despite clear evidence of an outbreak, no cases have yet come forward.

And officials insist the overall risk to the public remains very low.

Dr Vanessa Saliba, Consultant Epidemiologist at UKHSA said: “Vaccine-derived poliovirus is rare and the risk to the public overall is extremely low.

“Vaccine-derived poliovirus has the potential to spread, particularly in communities where vaccine uptake is lower.

“On rare occasions it can cause paralysis in people who are not fully vaccinated so if you or your child are not up to date with your polio vaccinations it’s important you contact your GP to catch up or if unsure check your red book.”

Polio is an infectious disease that can spread from person to person and most commonly affects children under the age of five.

The disease attacks the nervous system and in some extreme cases can lead to paralysis.

Polio is very contagious, and a person can transmit it even when they aren't sick.

In the UK, the polio vaccine is part of the NHS routine childhood vaccination schedule.

It's given as a jab when a child is 8, 12 and 16 weeks old. And two further shots are administered at 3 years and 4 months old, and at 14 years old.

However, one in ten kids in London aged five are not fully vaccinated against the bug.

Jane Clegg, Chief nurse for the NHS in London, said: “The majority of Londoners are fully protected against Polio and won’t need to take any further action, 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.

“Meanwhile, parents can also check their child’s vaccination status in their Red Book and people should contact their GP Practice to book a vaccination should they or their child not be fully up-to-date.”

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