Many thanks @KatyTurNBC @KatyOnMSNBC for hosting me with @carolelee @ashishkjha we spoke about some exciting new on J&J vaccine, likely to be released soon through FDA EUA, although only 3 million doses so far. 
A few things: we need to move quickly ahead of the SGTF variants, so having additional doses is a big plus, given we’ll need about 0.5 billion immunizations to fully vaccinate the US population
Also looking at phase 1-2 data, my guess is giving a second dose will give protective immunity equivalent to Moderna and Pfizer-BioNTech and more durable protection, so don’t be too surprised if a 2nd dose is recommended down the line
But even as a single dose vaccine it looks really good. Some clarification on statements less than 50% efficacy in those over 60 required. This may also indicate the need for a 2nd dose down the line.
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