More than 400 people have been infected with mumps in Arkansas.
The enormous outbreak, reported on Friday, has sparked an urgent investigation to contain the spread.
Cities and towns across the state have recorded at least 427 recent cases.
Most of the patients are children, with more than 30 schools reporting numerous infections.
Mumps is a virus of the salivary gland. The infection is incurable and can lead to devastating illnesses in adults. Medics fear a new strain of the virus could be developing in Arkansas
WHAT IS MUMPS?
Mumps is a virus of the salivary gland.
It is spread through saliva, commonly on glasses, plates and cutlery.
The infection is incurable and can lead to devastating health concerns in adults.
Sufferers have lost their hearing, become…