Close scrutiny: SJKC Poay Wah teachers checking the mouths of pupils for ulcers and spots.
GEORGE TOWN: The hand, foot and mouth disease has spread to pupils in Penang and their schools have been ordered to close after health officials inspected them.
With the HFMD spread now at an alarming 472% higher than last year, at least four schools have been ordered to close for 10 days since Monday.
