Simplify the following text for a Grade 7 native English-speaking person.
Original: Pugs can suffer from necrotizing meningoencephalitis ( NME ) , also known as pug dog encephalitis ( PDE ) , an inflammation of the brain and meninges , that also occurs in other small-breed dogs , such as the Maltese and Chihuahua .
Simplified: NME is an inflammation of the brain and meninges . It is also known as pug dog encephalitis ( PDE ) .