Covid update: Smartphone testing; free vaccine in Kerala; USA Pfizer nod

From scientists developing portable testing to Kerala CM announcing free vaccine in the state, here are the top updates on the coronavirus pandemic. Scientists have developed portable saliva-based smartphone testing for Covid-19 testing. The developers claim the testing can provide results within 15 minutes. Meanwhile, USA gave the final nod for the use of the Pfizer/BioNtech vaccine for emergency use. Also, Kerala chief minister Pinarayi Vijayan announced that the state government will provide Covid-19 vaccine to the people for free. Watch the full video for more details.