The latest local Covid death, the 88th, was a chronically ill Thai man, aged 88, believed to have been infected by a close relative, a senior disease control official said on Wednesday.
Dr Chawetsan Namwat, acting director for control of acute diseases, said the man was a native of Bangkok and confined to his home by illness.
He was believed to have been infected by a younger member of his family.
The man had kidney disease, diabetes and hypertension. He began coughing and developed breathing difficulties on Feb 25.
On Feb 27 he was taken to a private hospital in Bangkok and an X-ray found his lungs were inflammed.
On March 2, the man was fatigued, tested positive for Covid-19 and was put on a ventilator. His condition gradually worsened and he died about 4am on Tuesday, Dr Chawetsan said.