Kaduna, Kano, Jigawa, and Gombe states, northern Nigeria

Greater Accra, Central and Western regions

River Nile, Kassala, Northern states

Kano and Jigawa States

Kogi and Niger States

All Regions

All three regions of Malawi—the Northern, Central, and Southern regions.

Greater Accra, Central, Eastern regions

Eastern Uganda (Districts: Bugiri, Butaleja, Mayuge)

Bangkok and surrounding districts (Samut Prakan, Nonthaburi, Pathum Thani, Chon Buri, Rayong)