Most of the vaccines in development will likely require two doses.
If it truly requires -80 degrees C, I don't see how it's going to be of any practical use. Most medical facilities do not have freezers that go any lower than residential freezers.
I looked into this a bit. The vaccine can be kept at 2-8 degrees C for up to 5 days. Other articles are saying that the vaccine can be kept at -70 C for 6 months. Dry ice is -78 degrees. Pfizer plans to ship it in dry ice units that are good for 15 days. The logistics of getting these doses distributed in 20 days from the shipping date are going to be a nightmare.
We still have no safety data. We don't know how long the protection will last with this vaccine. There are several more in the pipeline that could be better.
If it truly requires -80 degrees C, I don't see how it's going to be of any practical use. Most medical facilities do not have freezers that go any lower than residential freezers.
I looked into this a bit. The vaccine can be kept at 2-8 degrees C for up to 5 days. Other articles are saying that the vaccine can be kept at -70 C for 6 months. Dry ice is -78 degrees. Pfizer plans to ship it in dry ice units that are good for 15 days. The logistics of getting these doses distributed in 20 days from the shipping date are going to be a nightmare.
We still have no safety data. We don't know how long the protection will last with this vaccine. There are several more in the pipeline that could be better.