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 per CDC guidelines. 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.