Serum Institute (SI) has delayed exports of COVID-19 vaccines to the end of 2021 instead of the end of June, likely due to the accelerating pandemic in India. That will have significant implications for the rollout of vaccines in emerging markets. Exports linked to Serum Institute had already fallen to just $4.5 million in March 2021 – the lowest in two years – with Africa receiving 62.2% of exports in Q1’21. Serum Institute may face risks to its supply chain if other countries choose to prioritize the availability of components and ingredients for their own vaccine supply chains. SI’s i...