As we write this, the number of positive coronavirus cases have already touched the 16.5 million mark and resulted in 9.57 million fatalities across the world. At the same time, scientists and medical experts globally are working at breakneck speed to develop a vaccine which can induce an immune system response against the novel coronavirus.

As of now, there are more than 155 vaccine candidates in different stages of clinical trials and 26 of them have reached the human trails phase. Out of these, 5 potential vaccines have reached the Phase III (or last stage) of clinical trials, where thousands of volunteers of different age groups are dosed with the vaccine candidate to test its safety and efficacy in inducing an immune response.