On December 31, 2020, the COVID 19 Situation Center (FRC) found the infection in 51 provinces including
Red zone (Infected more than 51) including Bangkok, Samut Sakhon, Rayong, Nakhon Pathom, Chon Buri, Nonthaburi
Orange zone (11-50 infected) including Samut Songkhram, Samut Prakan, Chachoengsao, Pathum Thani, Ratchaburi, Chanthaburi, Tak, Saraburi, Phetchaburi
Yellow zone (Infected 1-10) including Chaiyaphum, Nakhon Ratchasima, Chainat, Krabi, Phichit, Phra Nakhon Si Ayutthaya, Khon Kaen, Phuket, Uttaradit, Kamphaeng Phet, Nakhon Sawan, Nakhon Nayok, Prachin Buri, Songkhla, Satun, Chiang Mai, Phetchabun, Sukhothai, Ang Thong, Lop Buri, Suphanburi, Loei, Udon Thani, Surin, Ubon Ratchathani, Nakhon Si Thammarat, Surat Thani, Trang, Narathiwat, Lampang, Ranong, Amnat Charoen, Trat, Mahasarakham, Nong Khai, Kanchanaburi
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