Re: Anti radiation vaccine?

On 13/12/2024 04:47, Jan Panteltje wrote:

How 'Conan the Bacterium' withstands extreme radiation
New discovery finds simple metabolites combine to form a powerful antioxidant
  https://www.sciencedaily.com/releases/2024/12/241209162526.htm
Date:
     December 12, 2024
Source:
     Northwestern University
Summary:
     Thanks for a powerful antioxidant, Deinococcus radiodurans can withstand radiation doses 28,000 times greater than what would kill a human. In a new study, scientists discovered how the antioxidant works. Finding could drive the development of designer antioxidants to shield astronauts from cosmic radiation.

It isn't really a vaccine as such, More a drug that could be administered to people who have to work in high radiation zones.
Life evolved on Earth back when the natural environment was a lot more radioactive than it is today. Some of it still has that heritage.
There is also the issue of immediate LD50 radiation dose and long term background dose. Humans can survive a fair amount of total radiation dose provided that it is over a longer period of time. 200cGy in total except that 15cGy/day is OK for 100 days (total dose 1500cGy).
See para 8. below:
http://www.roc-heritage.co.uk/uploads/7/6/8/9/7689271/rocjaannexj.pdf
(I presume now declassified since it is online and Google finds it)
That is why it is so important to spend the first 2 days (at least) and preferably the first 2 weeks in a heavily shielded facility if there is nuclear fallout. Radiation levels from a nuclear blast decreases by a factor of 10 for each 7 fold increase in time from an hour after t0.
--
Martin Brown