@kxi18_ @boiwonderquan7i @BBCWorld #COVID cont
1/2 risk factors attributed to genetics while other 1/2 are environmental factors incl infection &amp; smoking [2]. 
infections by many microorganisms
P. gingivalis, P. mirabilis, #Epstein–Barr virus (EBV), &amp; mycoplasma contribute to the etiopathogenesis of RA...
$aapl https://t.co/FPuHO1i75Q