Pfizer and BioNTech announce their new vaccine as having a 90%+ efficacy. Compare that with the flu vaccine whose efficacy has eroded to about 60% or less in the overall population.
Two doses are needed per person, and protection from COVID is achieved about a month after the first dose.
This vaccine will have limited availability starting December 2020 and wide availability by the third quarter of 2021. They are expecting to produce 1.3 billion doses in all of 2021, which means there will not be enough for everyone next year. We will need the other vaccine candidates to also come through if we are to innoculate most of the population on the planet.
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Moderna vaccine is also reporting 95% efficacy:
www.sciencenews.org
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AstraZeneca/Oxford vaccine came in at about 70% efficacy, but they believe that can be approved with changes in dosing and timing:
www.reuters.com
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Russia's Sputnik vaccine is also reportedly coming in at 95% efficacy:
www.theguardian.com
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China's Sinopharm's vaccine is being rolled out with nearly an 80% efficacy:
www.cnn.com
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Novavax's vaccine results are at 89% (against the wild version of the virus):
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J&J's vaccine has an overall efficacy of 66% but with just one shot:
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Two doses are needed per person, and protection from COVID is achieved about a month after the first dose.
This vaccine will have limited availability starting December 2020 and wide availability by the third quarter of 2021. They are expecting to produce 1.3 billion doses in all of 2021, which means there will not be enough for everyone next year. We will need the other vaccine candidates to also come through if we are to innoculate most of the population on the planet.

Pfizer, BioNTech say Covid vaccine is more than 90% effective—'great day for science and humanity'
Dr. Albert Bourla, chairman and CEO of Pfizer, hailed the development as a "great day for science and humanity."
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Moderna vaccine is also reporting 95% efficacy:

Moderna says its COVID-19 vaccine is nearly 95 percent effective
Another coronavirus vaccine appears to be very effective in preventing people from developing COVID-19 symptoms.

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AstraZeneca/Oxford vaccine came in at about 70% efficacy, but they believe that can be approved with changes in dosing and timing:
Explainer-How does AstraZeneca's vaccine compare with Pfizer-BioNTech?
Britain on Wednesday became the first country to approve AstraZeneca and Oxford University's home-grown UK COVID-19 vaccine, adding an easy-to-manage shot to the arsenal of a nation desperate for pandemic relief.
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Russia's Sputnik vaccine is also reportedly coming in at 95% efficacy:

Russia says data on Sputnik Covid vaccine shows 95% efficacy
Country offers to share technology, saying results positive for the entire world

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China's Sinopharm's vaccine is being rolled out with nearly an 80% efficacy:

China approves Sinopharm Covid-19 vaccine, promises free shots for all citizens
China approved its first homegrown coronavirus vaccine for general public use on Thursday, with officials promising to provide the general public with free inoculations.

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Novavax's vaccine results are at 89% (against the wild version of the virus):
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www.cnbc.com
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J&J's vaccine has an overall efficacy of 66% but with just one shot:
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www.cnbc.com
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