Mekong Delta (provinces of Long An, Dong Thap, An Giang, and Can Tho)

Eastern and Central Province

Central Province

Mahasarakham and Kalasin provinces

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

Central

Central and Eastern Province