Cases were recorded in Hanoi (978), Phu Tho (753), Bac Giang (556), Quang Ninh (538), Nghe An (456), Yen Bai (440), Vinh Phuc (397), Tuyen Quang (338), Lao Cai (334), Gia Lai (318), Dak Lak (318), Thai Nguyen (314), Thai Binh (276), Quang Binh (271), Bac Kan (266) ), Hai Duong (257), Ba Ria – Vung Tau (210), Nam Dinh (208), Hung Yen (199), Bac Ninh (198), Lam Dong (195), Hoa Binh (183), Cao Bang ( 178), Lang Son (174), Ha Giang (153), Ninh Binh (144), Dien Bien (129), Ha Nam (125), Son La (123), Da Nang (108), Vinh Long (97) , Quang Tri (87), Lai Chau (82), Binh Phuoc (80), Thanh Hoa (79), Hai Phong (78), City. Ho Chi Minh City (76), Tay Ninh (75), Dak Nong (74), Binh Dinh (71), Quang Nam (63), Ca Mau (42), Phu Yen (42), Ben Tre (40), Quang Ninh Ngai (31), Binh Duong (29), Thua Thien Hue (27), Kien Giang (26), Bac Lieu (25), Khanh Hoa (20), Binh Thuan (19), An Giang (15), Long An (14), Tra Vinh (12), Dong Nai (11), Hau Giang (4), Kon Tum (4), Dong Thap (3), Can Tho (2).