Australian researchers have cracked the code behind common mRNA vaccine side effects like headaches and fatigue—and their findings could pave the way for safer, more effective vaccines. 🧬 A new study by Melbourne’s Peter Doherty Institute and RMIT University, published Thursday, offers the first detailed look at how mRNA vaccines circulate and break down in the bloodstream.
Analyzing 156 blood samples from 19 individuals after COVID-19 booster shots, researchers found trace amounts of mRNA vaccines escaping lymph nodes and entering the bloodstream. This tiny 'leak' varies between people and triggers inflammatory responses, explaining side effects in some. 💬 'This discovery helps us understand why reactions differ,' said co-author Yi Ju of RMIT.
Since their 2020 debut, mRNA vaccines have revolutionized medicine—using genetic instructions instead of weakened viruses to train the immune system. The tech is now being tested for cancer treatments. 🚀 Researchers say this breakthrough could optimize future vaccines by minimizing bloodstream entry while boosting immunity.
🌍 The takeaway? Side effects aren’t one-size-fits-all, and science is one step closer to making mRNA shots even better.
