The world’s hungry for Pfizer-like vaccines. But vital components are in short supply

Given the AstraZeneca COVID-19 vaccine is no longer recommended for under-50s following news of very rare blood clots, Australia is looking to other vaccines to plug the gap.
Pfizer’s mRNA vaccine will become the mainstay of the rollout, with 40 million doses expected to arrive before year’s end.
But Australia isn’t the only country eager to get its hand on this vaccine.
Skyrocketing demand coupled with shortages of vital components is leading to bottlenecks in the supply chain of this and other mRNA vaccines, delaying vaccine supplies.