Streptococcus pneumoniae is well known for phase variation between opaque (O) and transparent (T) colonies within clonal populations. While the O variant is specialized in invasive infection (with a thicker capsule and higher resistance to host clearance). the T counterpart possesses a relatively thinner capsule and thereby higher airway adherence and colonization. Our previous study ... https://allfixelectricales.shop/product-category/stereo-earphones/