Cat parasite infecting third of humans is ‘major cause of vision loss’, scientists warn

As much as a third of the world’s population could be infected with a parasite from cats that might lead to retina-damaging eye infection and permanent vision loss, a groundbreaking new study warns.

Although the disease, toxoplasmosis, is preventable and treatable, researchers call for it to be formally recognised as a neglected tropical disease (NTD) by the World Health Organisation (WHO).