24% of all Han Chinese carry a genetic code in their immunity genome ,that makes them more susceptible to getting very ill from certain strains of flu .
Only 0.03 of Europeans carry the same genetic coding .
" Researchers in China and Britain looked at Chinese hospital data from the 2009-2010 pandemic of H1N1 influenza.
Patients who had the minute variant were six times likelier to be treated for severe infection compared with patients who had a different genetic type, they found.
The variation focuses on just a single change in the code of a key gene in the immune system.
The IFITM3 gene -- for "interferon-induced transmembrane protein-3" -- determines how cells fight the influenza virus.
The single code change is called rs12252, and it comes in three variants, also called genotypes: CC, CT and TT.
Around 24 percent of Han Chinese have the CC genotype, but their numbers were disproportionately high among those who were badly affected by flu, the investigators learned."
Edited by Simbi Laveau, 02 February 2013 - 08:03 AM.