The Covid-19 Vaccines - By The Numbers

They've finally arrived! Here's what we know so far about these game-changing immunizations

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The Covid-19 Vaccines - By the Numbers

They've finally arrived! Here's what we know so far about these game-changing immunizations.

Between 21 and 28 days

The ideal time you'll wait before getting your second dose of the mRNA COVID-19 vaccines that are currently in use.

2 Weeks

The time it takes for your body to build up the maximum protection you're fully vaccinated.


The temperature at which the Pfizer-BioNTech COVID-19 vaccine must be stored.


The percentage of hospitalizations and deaths the shots prevented during trials.

3 Days

The time span when you're most likely to notice mild-to-moderate side effects (if any) post-shot.


The number of people who rolled up their sleeves for the Moderna vaccine Phase 3 trial.


The number of vaccines currently being tested on humans in clinical trials. Having a variety of different (but effective) shots will give doctors an arsenal of options to fight the pandemic.


The number of COVID-19 vaccines currently authorized for use in the U.S., made by Moderna, Pfizer-BioNTech and J&J.


The age of the first person in the world to get a COVID-19 vaccine outside of a study.

The information in this story is accurate as of press time and posting. To limit the spread of the coronavirus, it’s important to continue practicing social distancing (keeping at least 6 feet away from people outside your household) and washing your hands frequently. You should also be appropriately masked any time you’ll be in public. According to the CDC’s latest guidance, this means layering a disposable surgical mask underneath a snug-fitting cloth mask or placing a mask fitter over your cloth mask to ensure a tight fit. Because the situation surrounding COVID-19 continues to evolve, we encourage readers to follow the news and recommendations for their own communities by using the resources from the CDCWHO, and their local public health department.