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Vaccine definition simple. An effective covid 19 vaccine will need to provide people with long term infection protection. Vaccines have historically taken two to five years to develop. This is a three phase process of testing in humans.
And cnn reports that according to fauci when people develop antibodies to fight common colds caused by other strains of coronavirus that protection typically only lasts about a year meaning. There are currently more than 100 covid 19 vaccine candidates under development with a number of these in the human trial phase. Vaccines typically take about 10 to 15 years to develop and approve through four phases that include human trials.
But with operation warp speed approved vaccine projects can submit data to the. After infection with coronaviruses re infection with the same virus though usually mild and only happening in a fraction of people is possible after a period of weeks to years. There are now vaccines to prevent more than 20 life threatening diseases and work is ongoing at unprecedented speed to also make covid 19 a vaccine preventable disease.
Vial one from box one of the first clinical batch of the. But with a global effort and learning from past efforts to develop coronavirus vaccines researchers could potentially develop a vaccine in a much shorter time. Phase ii takes at least 2 years and includes several hundred people.
Heres why we need to work together no single institution has the capacity or facilities to develop a vaccine by itself. Typically a vaccine can take anything from years to decades to produce depending upon the disease and how complicated the situation is. This by historical standards is phenomenal.
Phase i usually lasts 1 to 2 years and involves fewer than 100 people.
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