By The Nation
The cases can be divided into four groups.
The first group consists of 17 people of whom 15 had had close contact with others previously confirmed as infected (mostly in the southern border provinces 7) and two went to an entertainment venue.
The second group comprised 10 people of whom one Thai had just returned from UK, one was working in crowded areas or close to foreigners, one went to crowded areas, and seven are medical staff.
The third group of four are being investigated on the source of the infection.
The last group are returnees from Indonesia who are in state quarantine, of whom two are infected.
Meanwhile, 83 people have fully recovered and returned home.
A 74-year-old man who went to a local market and was admitted in a hospital since April 1, died. He also had diabetes and dyslipidemia.
A 65-year-old woman, who went to visit a relative in Chumphon province on March 27 and was later admitted to a hospital on April 1 for shortness of breath, died. She also had diabetes and dyslipidemia.
A 44-year-old man, who slipped into coma on March 28, died of organ failure on Sunday morning.
As of April 12, the total number of confirmed cases in the country stood at 2,551 -- 1,295 are under treatment, 1218 have recovered and been discharged, and there have been 38 deaths.
Globally, there are more than 1.77 million confirmed cases and over 100,000 deaths.
Out of 33 new patients, 14 were found in Bangkok, 5 in Yala, 4 in Phuket, three in Pattani, two each in Narathiwat and Samut Sakhon, and one each in Loei, Chonburi, and Nakhon Si Thammarat.
There are no Covid-19 patients in the provinces of Kamphaeng Phet, Chai Nat, Trat, Nan, Bueng Kan, Phichit, Ranong, Sing Buri and Ang Thong.