Why Vaccines Are So Difficult to Develop

An inside look at why we are so far from a Covid-19 vaccine

Jesse Smith, MD
Elemental

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Photo: Jeff Pachoud/Getty Images

The first major outbreak of a coronavirus was nearly two decades ago. As that strain raged through Asia, there was an immediate effort to develop treatments and vaccines against the novel pathogen. Impressive measures were put into place to curb the spread of the disease and prevent people from…

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Jesse Smith, MD
Elemental

Physician and molecular biologist. I write about topics in science and medicine that relate to everyone.