The West African nation of 30 million has recorded 81,245 cases and 584 deaths since the beginning of the pandemic, according to figures from Ghana's Health Services on Tuesday.
India had earlier in January approved two vaccines -- Oxford's Covishield manufactured by SII and Bharat Biotech's Covaxin -- for restricted emergency use.
The Microsoft co-founder has been a top target of conspiracy theories related to the Covid-19, falsely linking him to the origin of the pandemic in one way or another.
This is India's first and only phase-3 efficacy study for a Covid-19 vaccine, and the largest phase-3 efficacy trial ever conducted for any vaccine in the country.
According to an official statement issued by the Director of Public Health and Family Welfare here on Wednesday, the man had developed chest pain around 2.30 am on Wednesday and was taken to the District Hospital