The world’s largest vaccine maker Serum Institute of India on Friday resumed exports of Covid-19 shots, it said, in a boost for poorer countries that have struggled to secure supplies. The shipment to Tajikistan under the COVAX vaccine-sharing initiative agreement was the company’s first in seven months. “This will go a long way in restoring vaccine supply equality in the world,” tweeted billionaire chief executive Adar Poonawalla. “It’s a huge moment to begin exports again, […]