There are more than 300 Covid-19 vaccine candidates, but only nine have reached the final stage before implementation. Here we break down how the vaccines work, their goals and when we can expect them 👇 on.ft.com/32RvJev
Most vaccines deliver a protein that covers the surface of the coronavirus and triggers the immune system to produce antibodies. But there are many ways to transmit immunising proteins into the body — and different researchers are trying different things ft.com/content/e50128…
Most likely, the vaccine won’t prevent individuals from getting infected, but a more pragmatic goal, adopted by most of the vaccine developers, is the prevention of symptomatic Covid-19 infections ft.com/content/e50128…
The vaccine will probably give only temporary immunity, with some experts warning that we may need to retake it every year. Efficacy itself will also vary, with one being 50% protective while another is 80% ft.com/content/e50128…
Not everybody will have the same chance to be immunised. A recent report says that wealthy nations representing just 13% of the world’s population have already cornered more than half of the promised doses of leading Covid-19 vaccine candidates ft.com/content/e50128…
When can we expect these vaccines to be ready? Nobody has a specific date yet, but we do know that it will take a while to mass-produce enough vaccines for herd immunity, which may happen only in 2021 ft.com/content/e50128…
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