Multiple factories, though one is the Serum Institute of India, said to be the largest in the world. https://in.reuters.com/article/us-health-coronavirus-india

Multiple factories, though one is the Serum Institute of India, said to be the largest in the world. https://in.reuters.com/article/us-health-coronavirus-india-cases/india-could-get-access-to-astrazeneca-vaccine-by-january-local-manufacturer-says-idINKBN280101 https://in.reuters.com/article/us-health-coronavirus-india-c...