World Trade Organization was debating Thursday a proposal to exempt Covid-19 vaccines from intellectual property rights -- an idea staunchly opposed by pharmaceutical giants.The debate is being held at the request of India and South Africa, which want to boost the global production of vaccine doses to combat the coronavirus pandemic.The plan aims to facilitate greater knowledge-sharing and the rapid scale-up of production sites for urgent Covid-19 medical goods, including vaccines.It is supported by around 100 countries, according to the medical charity Doctors Without Borders (MSF), and by the World Health Organization.WHO chief Tedros Adhanom Ghebreyesus said a green light from their Geneva neighbours at the WTO would make the vaccines,.