//Polio in England

Polio in England

Return of Polio to England after 18 years free

UK, case of wild polio, 1984

UK was declared polio-free in 2003

UK, national incident declared


Detected, sewage samples in London

Past four months, polio virus, Beckton sewage works, four million in north and east London

Cluster of genetically-linked samples

The virus has evolve

Now classified as a ‘vaccine-derived’ poliovirus type 2 (VDPV2)

Someone recently vaccinated overseas, live virus (Albert Sabin, 1961)

Not used in UK since 2004


Not used in United States since 1987


UK vaccination for polio

Inactivated polio vaccine, IPV, (Jonas Salk, 1955)

Take-up of the first three doses, London, 86%

Rest of UK over 92%

Vaccine-derived polio

Nigeria, poliomyelitis, 2005 and 2006 from several countries,
(that have previously been polio-free)

As opposed to wild form

Can be transmitted, can mutate

No cases have been detected

Health Secretary Sajid Javid

not particularly worried

NHS in London

Contacting unvaccinated under 5s



Inactivated polio vaccine (IPV)

Only polio vaccine given in the United States since 2000

Oral polio vaccine (OPV) is used in other countries

US Schedule

2 months old

4 months old

6 through 18 months old

4 through 6 years old

Adults at increased risk of exposure to poliovirus

One IPV booster for life

IPV is as effective as OPV for preventing polio

Two doses of IPV provides 90% immunity to all three types of poliovirus

3 doses provides at least 99% immunity