People may have to take multiple doses of a possible Covid-19 vaccine to protect themselves from the disease, said Microsoft co-founder Bill Gates.
The billionaire philanthropist told CBS News on Wednesday that “none of the vaccines right now seems to work with a single dose.”
Currently, more than 150 Covid-19 vaccines are at different stages of development, and some are now moving towards late-stage clinical trial.
The Bill & Melinda Gates Foundation has donated $ 300 million to the global effort to beat Covid-19.
In a blog post, Gates had previously said that developing a safe and effective vaccine is an urgent need to combat the pandemic.
“We need to make billions of doses, we need to get them to all parts of the world, and we need all of this to happen as quickly as possible,” he wrote.
The world will need to manufacture and distribute at least seven billion doses of the vaccine, or possibly 14 billion, if it is a multi-dose vaccine, to beat the pandemic, he said.
This is because to stop the pandemic, the vaccine will have to be available to almost everyone, Gates said.
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