It has been six months since the Johnson & Johnson vaccine received emergency use authorization. What does six months of data show about its efficacy, side effects and protection from variants?
The U.S. FDA has approved the first COVID-19 vaccine. How is approval different from emergency use authorization, and what difference will it make to a vaccine that’s already in global use?
Anti-vaccine activists are using the side effect reporting system to spread fear and misinformation about the COVID-19 vaccines. But the database could also be used as a gauge for public concerns.
There is an urgent need to combat historically fuelled vaccine hesitancy within Indigenous communities. The best way to do this is through evidence-based knowledge and community-led work.
Each dose of Pfizer has a long and complex path involving mixing, storage at temperatures colder than the South Pole and specific protocols that must be followed before it becomes a jab.
The largest immigration detention centre is located in a COVID hot spot in western Sydney. We need to make vaccinations for detainees and staff an urgent priority.
Coverage of Russian vaccination rollout has focused largely on concerns about ethics of development and inconsistent messaging. But Russian-language research complicates this picture.
Sorana Froda, Université du Québec à Montréal (UQAM) and Fabrice Larribe, Université du Québec à Montréal (UQAM)
Vaccine efficacy is usually expressed as a percentage, but what is it actually measuring? Statisticians explain what the numbers mean, and what they say about how well a vaccine can protect us.
America’s founders accepted the reality of human selfishness. But, they also said people were capable of thinking for the good of the whole, which is necessary for a free society.
For decades, US schools have been common sites for vaccine clinics to respond to outbreaks and provide catch-up immunizations. So why are they suddenly controversial?
Dean Faculty of Health Sciences and Professor of Vaccinology at University of the Witwatersrand; and Director of the SAMRC Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand