CURRENTNATIONAL Four zones for classification of Covid-19 areasEditor Selangor JournalApril 3, 2020April 3, 2020 by Editor Selangor JournalApril 3, 2020April 3, 2020 KUALA LUMPUR, April 3 — The areas of Covid-19 have been classified into four zones based on the number of cases in an area by...