Vaccine-derived poliovirus detected in London sewage samples


Oral polio vaccine replicates in the gut and can be passed to others through faecal-contaminated water – meaning it won’t hurt the child who has been vaccinated, but could infect their neighbours in places where hygiene and immunisation levels are low. – EPA pic, June 23, 2022.

A TYPE of poliovirus derived from vaccines has been detected in London sewage samples, the World Health Organization and British health officials said yesterday, adding that more analysis was underway.

No human cases of polio have been found in Britain, where the crippling disease was fully eradicated two decades ago.


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