Siphiwe Sibeko/Pool via AP Some Muslims are concerned over the Halal status of the COVID-19 vaccine. The consumption of pork is not permitted under Islamic law and it is often used as a stabilizer in vaccines. Most feel that getting vaccines with these stabilizers is permissible under Islamic law because not getting them would be a greater harm. Pfizer, Moderna, and AstraZeneca have said pork products aren't part of their COVID-19 vaccines. In October, Indonesian diplomats and Muslim clerics stepped off a plane in China. While the diplomats were there to finalize deals to ensure millions of doses reached Indonesian citizens, the clerics had a much different concern: Whether the COVID-19 vaccine was permissible for use under Islamic law.