Covid-19 vaccine results from Pfizer Inc. and BioNTech SE fueled optimism that the world will soon have a potential way out of the pandemic, yet experts cautioned that the shot still has many hurdles to clear, Times of India reported. Questions about production, distribution and, most importantly, the performance and capability of the shot itself still need to be answered, even if the numbers look highly promising, according to vaccine specialists. The vaccine needs to be refregerated below -80 degree and no facility in all the developing countries like Nigeria…
Read MorePfizer COVID-19 vaccine has safety, longevity hurdles to clear – Experts
