Adapted from a Mass General news release. The dosing regimen is a single dose of 0.5 mL, the vaccine does not contain a preservative. [CDATA[> There are many reports of small blood clots in multiple organs in COVID-19 patients causing organ damage, failure and death. Factor V Leiden Association - Expanding Awareness People with a history of infection who have ALSO gotten three doses of an mRNA vaccine have very high protection against future infection with all the variants known until now. What is Factor V Leiden American Factor V Leiden Association [CDATA[// >
