Health officials say the new case of polio in New York state and the presence of poliovirus in the municipal wastewater suggests that hundreds more could already be infected with the disease.
Polio cases in the US, UK and Israel remind us that this could also happen in Australia. Here’s what we should watch out for.
The move follows recent detections of poliovirus in London’s wastewater.
The oral polio vaccine – which is no longer given in the US – relies on a live but weakened virus that can actually be passed from person to person.
A challenge in eradicating polio comes from a version of the vaccine itself, which relies on live but attenuated virus. Rationally designing a new vaccine could help get rid of polio once and for all.