There were 2,263 more confirmed Covid-19 cases and 18 related fatalities on Tuesday, the Public Health Ministry reported on Wednesday.
This compared with 1,833 new cases and 19 coronavirus-related fatalities reported on Tuesday morning.
On Tuesday, 2,109 Covid-19 patients were discharged from hospitals after recovering from the coronavirus.
Tuesday’s figures released on Wednesday did not include 4,236 positive results from antigen tests over the past 24 hours. This would raise the total to 6,499.
As of midnight Tuesday, a total of 21,581 people were receiving Covid-19 treatment, including 11,429 in hospitals. The remainder were in hospitel facilities (1,963) or in home/community isolation (8,020), according to the daily update posted by the Department of Disease Control.
Of those in hospital, 644 were seriously ill with lung inflammation and 322 dependent on ventilators.
The 24-hour period also saw 2,109 patients discharged from hospitals after recovering.
According to the CCSA, the 18 people who died were aged from 17 to 102 years with an average age of 69. All were Thais.
Bangkok reported one coronavirus-related death. There were none in adjacent provinces.
Other central plains provinces further from the capital had seven deaths - one each in Nakhon Sawan, Saraburi, Chon Buri, Rayong, Ratchaburi, Phetchaburi and Prachuap Khiri Khan.
The North reported one death in Lampang.
The Northeast saw seven more covid-related fatalities - two in Nakhon Ratchasima and one each in Nong Bua Lam Phu, Si Sa Ket, Sakhon Nakhon, Yasothon and Ubon Ratchathani.
The South reported two deaths - in Nakhon Si Thammarat and Chumphon.
Vaccinations continued, with 138.77 million doses administered as of Tuesday. The government said 81.8% of the population had received at least one dose of the vaccine, 76.1% at least two shots and 41.6% at least one booster shot.
On Tuesday, 59,963 vaccine doses were administered - 8,388 as a first shot, 15,660 as a second shot and 35,915 as a booster.
Global Covid-19 cases rose by 583,971 in 24 hours to 541.77 million. The worldwide death toll went up by 1,315 to 6.33 million.
Since the pandemic started in early 2020, there have been 4,490,330 Covid-19 cases, including 2,267,325 cases this year, with 4,438,793 complete recoveries to date.
The accumulated death toll stood at 30,386 since the beginning of the pandemic, including 8,688 so far this year.
The highest number of Covid-related fatalities in a 24-hour period was 312 recorded on Aug 13, 2021. The highest number of cases was 28,379 on April 1, 2022.