LyrArc Article Gist
The Johnson & Johnson single dose vaccine gets approval in the U.S. It is 85% effective in preventing severe illness, and 66% effective overall against moderate cases.

LyrArc Article Gist
With better control over the coronavirus than U.S. and Europe, South Korea is not rushing to buy the vaccines developed by Pfizer or Moderna. It is waiting to see how the vaccine rollouts work in other countries before buying the vaccine. South Korea is also looking at getting better price from manufacturers after the rollouts in the U.S. and Europe. South Korea is moving cautiously and has said it wants to get 10 million doses through the Covax initiative the main global effort to provide broad access to vaccines. Another 20 million doses would be secured from private companies. This is in contrast to the approach in Japan where the government has signed deals for purchase of 290 million doses for 145 million people for its population of 126 million. The money allocated is $6.5 billion and the goal is to vaccinate everyone by first half of 2021.  If it works this would prepare Japan for the Tokyo Summer Olympics to open in July, after 1 year delay. South Korea has the freedom to do this and wait to see what vaccine works best with least long term effects because their are relatively fewer cases there. A total of 313 new daily cases on November 18, lower than daily cases in a single county in the state of Michigan in the U.S. Moderna and Pfizer vaccines use anew kind of gene based technology that has never been approved to prevent infectious diseases. Other competition is the vaccine from Oxford and Astra Zeneca which uses an existing technology that is used in existing vaccines modified for use in coronavirus. The Oxford vaccine and a vaccine from Johnson and Johnson are expected to have a lower price. Because life is functioning very close to normal South Korea is in the unusual position of saying that its people have no reason to be anxious for vaccine procurement, as indicated by its deputy director of Korea Disease Control and Prevention Agency. Only three fifths of the population is the target for vaccination by fall of 2021. ...

LyrArc Article Gist
Johnson & Johnson begins a 60,000 person clinical trial on 3 continents in the final stage of testing. It could learn vital results in early next year which if positive would lead to government authorization for emergency use soon after. J&J will test whether a single dose of vaccine will work. It is also doing work separately with the UK government for a separate phase three study to test whether a 2 dose vaccine will work.

Other companies in final stage of testing are Moderna and Pfizer with studies results expected in October and Astra Zeneca working with Oxford expecting results by the end of 2020.