International Statistic Of The Year: 332 Days To A Covid-19 Vaccine


Scientists in China published the complete genetic sequence of SARS-CoV-2 on Jan. 10, 2020. On Dec. 8, 2020, health officials in London began administering an effective coronavirus vaccine to the public. The global scientific community successfully developed a COVID-19 vaccine in just 332 days.

I am a statistician, and this year I was on the judging panel for the Royal Statistical Society’s International Statistic of the Year. Much like Oxford English Dictionary’s “Word of the Year” competition, we choose one statistic that is meant to capture the zeitgeist of the year.

The statistic 332 days was the clear, standout winner. After a year of terrible tragedy, economic hardship and sorrow, this number represents an unparalleled collaboration in the history of medicine that gives hope for a return to normality in 2021.

A researcher working with vials of COVID-19 in a lab.

Vaccine development normally takes around 10 years. AP Photo/Jessica Hill, File

Fastest vaccine development ever

In 1981, researchers established the link between human papillomavirus and cervical cancer, a disease that still causes hundreds of thousands of deaths per year worldwide. But it wasn’t until 2006, over 25 years later, that the first HPV vaccine was developed in the U.S.

On average, it takes over 10 years to develop a vaccine. Prior to this year, the fastest vaccine development was for the mumps vaccine. That took four years.

In April 2020, The New York Times played out multiple scenarios with vaccine experts as to how long it would take to get a SARS-CoV-2 vaccine. Under normal circumstances, experts estimated, a vaccine would be ready by November 2033.

So how is it possible that researchers got a vaccine to market in just 332 days?

The White House at night.

Massive government funding played a big role in getting the vaccine done so fast. AP Photo/Susan Walsh

Government financial investment

A number of things helped to get this vaccine done fast, including international collaboration of unseen proportions, an expedited trial phase process and the biology of the virus itself. In addition to these efforts, one very important reason for the incredible speed was the huge amount of investment made by governments at the very beginning of the pandemic.

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Disclosure: Liberty Vittert is an Ambassador for the Royal Statistical Society and a Judge for the Royal Statistical Society's Statistic of the Year.

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