North East, Yorkshire, and Northern Lincolnshire regions of England

Upper East, Ashanti

Central North and Central South Regions

Eastern and Central Province

Central Province

South-east Asia

North, West, East provinces

Kongo Central

The trial will take place in four provinces—Zhejiang, Hubei, Shanxi, and Guizhou—spanning Eastern, Central, and Western China.

Greater Accra, Central and Western regions