THE STUDY COVERED 300,000 PEOPLE AND TESTED THEIR BLOOD. THE STUDY PROVED BEYOND A SHADOW OF A DOUBT THAT *CLOTH* MASKS ARE NOT EVEN "BETTER THAN NOTHING" AGAINST COVID. HOWEVER: THE STUDY ALSO PROVES THAT THE BLUE MASKS WORN BY DOCTORS ARE MADE OF SYNTHETIC FIBERS WHICH ACTUALLY WORK AND REDUCED INFECTIONS. PAY ATTENTION