There were 10,064 new Covid-19 cases and 82 more fatalities recorded during the previous 24 hours, the Public Health Ministry announced on Wednesday morning.
Of them, 9,946 cases were in the general population and 118 among prisoners.
The number of new cases rose from the 9,445 announced on Tuesday, when the country recorded 84 more deaths.
On Tuesday, 10,988 Covid-19 patients were discharged from hospitals after recovering from the coronavirus.
Since April 1, when the third wave of Covid-19 began, Thailand has treated 1,711,565 Covid-19 patients, 1,587,917 of whom have recovered to date.
Since the pandemic started early last year, there have been 1,740,428 Covid-19 cases, with 1,615,343 having recovered.
The death toll stood at 17,823 in the third wave and 17,917 since the beginning of the pandemic.
The 82 new fatalities were between the ages of 17 and 92. They included three Myanmar nationals, a Cambodian, a Belgian and a Russian.
One of the fatalities was a 45-year-old female nurse in Rayong province who had obesity and hypertension and had been vaccinated against Covid-19.
Bangkok recorded 14 new deaths while another 14 were reported in the adjacent provinces of Samut Prakan (9), Samut Sakhon (4) and Nakhon Pathom (1).
Other central plain provinces further from the capital recorded 23 more deaths – Chon Buri (7), Saraburi (4), Kanchanaburi (2), Chanthaburi (1), Nakhon Nayok (1), Ayutthaya (1), Phetchaburi (1), Rayong (1), Ratchaburi (1), Sa Kaeo (1), Samut Songkhram (1), Ang Thong (1) and Uthai Thani (1).
The Northeast had five new fatalities in Roi Et (2), Maha Sarakham (1), Sakon Nakhon (1) and Udon Thani (1).
The South reported 20 more deaths in Narathiwat (5), Phatthalung (4), Nakhon Si Thammarat (3), Satun (3), Phuket (2), Surat Thani (1), Krabi (1) and Ranong (1).
The North saw six new fatalities in Phetchabun (2), Phitsanulok (2), Tak (1) and Mae Hong Son (1).
The 10,064 new cases included 9,937 local infections and nine imported cases.
Of the local infections, 9,156 were confirmed at hospitals and 781 via mass testing.
Bangkok had 1,142 new cases (down from 1,170 on the previous day), followed by 650 in Yala (up from 493), 475 in Songkhla (up from 467), 453 in Samut Prakan (up from 425), 442 in Chon Buri (down from 511), 423 in Pattani (down from 566), 420 in Narathiwat (down from 473), 326 in Rayong (up from 315), 311 in Chanthaburi (up from 146) and 264 in Nakhon Si Thammarat (down from 361).
Greater Bangkok reported 2,045 new cases (up from 1,978) and 28 new deaths (unchanged). Four southern border provinces had 1,968 new cases (down from 1,999) and 5 new fatalities (down from 16), while 67 other provinces recorded 5,924 new cases (up from 5,254) and 49 new deaths (up from 40).
The nine imported cases were from Israel (2), Russia (4) and Cambodia (3).
On Tuesday 107,168 people received Covid-19 treatment at hospitals (down from 108,174), including 2,941 seriously ill patients (down from 2,954) and 669 dependent on ventilators (up from 660).
At 10am, global Covid-19 cases rose by 389,864 in 24 hours (up from 315,153) to 239.48 million. The worldwide death toll went up by 6,745 (up from 4,657) to 4.88 million.
The United States had the most cases at 45.43 million, up 84,154 (up from 50,466), and the most deaths at 737,584, up 1,482 (up from 406 on the previous day).