Vaccine Breakthrough Infections with SARS-CoV-2 Variants nejm.orgSevere skin ulcer in systemic scleroderma due to severe acute respiratory syndrome coronavirus 2 infection WileyB.1.1.7 variant 45% more infectious than wild-type SARS-CoV-2, but can be effectively contained by BNT162b2 vaccine News-Medical.NetSARS-CoV-2 infection in young athletes tied to low risk for cardiac events HealioFatal meningococaemia in a SARS‐CoV‐2‐positive adolescent WileyView Full Coverage on Google News