[red-beard]

The UK (Astro Zeneca) and now Pfizer have been back checking the data from the vaccine studies and is finding that a single dose is "good enough". Now we can double the number of people vaccinated with the same infrastructure. This is good news.

On the temperatures, Pfizer was being very cautious. And they have had a few months to work on the effectiveness with less severe refrigeration. And note, the "normal freezer" temps are only allowed for storage for two weeks. You have to keep it at -94F if you want to keep it stored for multiple months or transport.

Pfizer I believe also has a shorter life in the bottle once warmed up to injection temps.

Texas Center for Drug Development is running three vaccine studies in our area: Pfizer, Moderna and Novavax. I was there yesterday getting my second "real" Moderna injection. I chatted with one of the nurses and the Novavax study is done. They are compiling the data and will be doing the FDA submittal soon.

Even after the submittal, we're still in the trial. They take blood and see how the antibodies develop and then track overtime the loss. I signed up for the Moderna Booster trial as well. We will see when that comes around.

J&J is days away from approval. That will add a HUGE amount of vaccine to the USA and the world. J&J says they can supply a billion doses this year. Maybe not as effective as the new guys. But better to get good vaccines out than wait for the others to produce.