Skyrocketing demand coupled with shortages of vital components is leading to bottlenecks in the supply chain of Pfizer's and other mRNA vaccines.
Our best long-term strategy is to rely on the mRNA vaccines like Pfizer and Moderna.
Australia was promised a world-class vaccine program. But instead of a rollout, we got an eekout.
The amount of risk from overseas arrivals depends not just on Australia's vaccination rates, but also on the particular circumstances of the country from which people are travelling.
Generally speaking, fault can only be proven when the doctor has acted outside of the professional standard of care.
This shift in focus away from AstraZeneca to the Pfizer vaccine has serious impacts on the timing of the rollout and public confidence in the AstraZeneca vaccine.
These mistakes have been mainly caused by our leaders giving priority to a good political story over good policy.
New mRNA vaccines use genes from the coronavirus to produce immunity.
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So far, most vaccines in the US are mRNA vaccines. These represent a new technology and are likely to take over the vaccine world. But how do they work? What are their weaknesses? Five experts explain.
Gene-based vaccines had never been approved for humans before the coronavirus pandemic.
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The coronavirus pandemic has driven a lot of scientific progress in the past year. But just as some of the social changes are likely here to stay, so are some medical innovations.
The Johnson & Johnson vaccine only requires one dose.
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The Johnson & Johnson vaccine is different from the Moderna and Pfizer vaccines in a few important ways that could make it a huge help to global vaccination efforts.
For many, distinguishing between fact and fiction is difficult.
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With the vaccines now being administered at sites around the US, it is important to address misinformation surrounding the effort.
The clock starts ticking once the vaccine leaves the freezer. Here's what to expect.
A health-care worker prepares a dose of the Pfizer-BioNTech COVID-19 vaccine at a UHN COVID-19 vaccine clinic in Toronto on Thursday, January 7, 2021.
THE CANADIAN PRESS/Nathan Denette
Behind Canada’s current COVID-19 vaccine shortage is a decades-long tale of unheeded warnings, missed opportunities and dismantled resources that was never going to end well.
Patients with overweight or obesity issues make up more than 70% of the U.S. population.
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Americans with excess weight and obesity have been hit hard by COVID-19. Now there is reason to believe they may not get the same protection from the vaccines.
It's going to be a huge logistical challenge.
Production limits the rate at which vaccines can be rolled out, and is at the heart of the current disagreements between the UK and EU.
After a second dose of the COVID-19 mRNA vaccine, a swarm of antibodies attacks the virus.
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With slow vaccine distribution and manufacturing, some people won't get the second dose on time. But does it matter?
Australia is set to get the green light to roll out the Pfizer vaccine any day now. There is a complex process behind this.
COVAX aims to accelerate the development and manufacture of COVID-19 vaccines and guarantee access to all countries.
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Many countries cannot afford to buy existing COVID-19 vaccines, a collective approach is needed.
Before the U.S. can return to some form of normal, a lot of people need to be vaccinated.
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Researchers say around 70% of the US needs to get the coronavirus vaccine to stop the pandemic. But questions around the vaccines and regional differences add some uncertainty to that estimate.