The fatalities included a 56-year-old woman in Bangkok and a 32-year-old man in Nonthaburi.
The woman had been suffering from several chronic conditions, including high blood pressure, obesity and diabetes. She had tested positive on April 17 and died two days later.
The man, meanwhile, had been suffering from allergies and had come in contact with another Covid patient on April 4. He began developing symptoms on April 8 and succumbed to the virus on April 19.
Of the 1,458 cases confirmed, the highest number or 365 were in Bangkok, 134 in Chiang Mai, 80 in Chonburi and 69 in Nonthaburi.
They also included four who had flown from overseas – two Thai nationals from Japan and Malaysia, and two Japanese people from their home country.
Meanwhile, 413 patients have recovered and discharged from the hospital.
As of Wednesday, the number of confirmed cases in Thailand had risen to 46,643. Of these, 43,397 had been contracted locally, including 20,814 who were found via proactive testing, while 3,246 were returnees.
So far, 29,371 have recovered and been discharged, 17,162 are still in hospitals and 110 have died.
According to Worldometer, as of 11am on Wednesday, the number of confirmed cases globally had risen to 143.54 million (up by 824,975), 121.89 million of whom have recovered, 18.6 million are active cases (109,498 in severe condition) and 3.05 million have died (up by 13,905).
Thailand ranks 106th in the global list of most cases, which is topped by the US with 32.53 million, followed by India 15.6 million, Brazil 14.05 million, France 5.33 million and Russia 4.71 million.
In the last 24 hours, 33,122 people had received their first shot of the Covid-19 vaccine, while 13,279 got their second shot, bringing the total number of doses administered in Thailand up to 712,610.