विकलांगता शिविर में 142 ने कराया रजिस्ट्रेशन, जांच हुई सिर्फ 82 की

Scientists at the University of Cambridge on Tuesday began a clinical trial of a needle-free air-powered vaccine, which is expected to help combat future variants of COVID-19.

from NDTV News - World-news https://ift.tt/3yrNUFV