How much protection does the current batch of COVID-19 vaccines provide us? Would you need a booster shot for new variants? What does science and evidence tell us about mass gatherings and the spread of COVID-19? WHO’s Chief Scientist Dr Soumya Swaminathan explains in Science in 5 this week

1 April 2021 In our unequal world, how does inequity impact our fight against COVID-19? How can we address it? WHO’s Dr Mariângela Simao explains in Science in 5 this week.

Learn what scientists look for in the different phases of a clinical trial for a vaccine. What does it mean when a vaccine trial is halted due to an adverse event? WHO’s Dr Kate O’Brien explains in Science in 5 this wee

mRNA vaccines have to potential to end the COVID19 pandemic. How do they work? Are they safe? And how could they've been developed so quickly?

Learn about the composition and delivery mechanism for the new classes of COVID-19 vaccines based on adenovirus from Johnson & Johnson and AstraZeneca with Dr. Jonathan Genzen, COO of ARUP Laboratories and an Associate Professor at the University of Utah School of Medicine

Vaccines are designed to give you immunity without the dangers of getting the disease. It’s common to experience some mild to moderate side effects when receiving vaccinations. This is because your immune system instructs your body to increase blood flow so more immune cells can circulate, and it raises your body temperature to kill the virus. Vaccines help protect us against disease and feeling mild or moderate side effects after receiving one is a sign that the vaccine and our immune system is working

26 March 2021 If you have already had COVID-19 do you still need both doses of the vaccine? Do these vaccines protect you against infection? Do they protect us against variants? WHO’s Dr Katherine O’Brien answers these questions in Science in 5 this week

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