India typically produces more than 60% of all vaccines sold globally, and is home to the Serum Institute of India (SII), the globe's largest vaccine maker. Through it all, vaccine supplies have dried up on the ground, with at least five states reporting severe shortages and urging India's federal government to act. Here's what else to know about Covid-19 vaccines. Doctors home in on cause of blood clots potentially linked with Covid-19 vaccinesDoctors are zeroing in on the cause of blood clots that may be linked with certain coronavirus vaccines. If vaccination can cause the condition, it would be important to recognize that and treat it appropriately -- because the usual treatment for blood clots is not recommended for VITT.

Source: CNN April 19, 2021 12:09 UTC