NEJM's newest on Covid 19

CONCLUSIONS: In long-term follow-up of individuals with mild initial COVID-19 and no prior structural heart disease, aerobic capacity relative to predicted values was reduced in 48% of participants, particularly in men, and was independently

Non-spike changes driving SARS-CoV-2 fitness remain undercharacterized. Two PLOS Biology papers show that evolutionary N gene changes create a transcription-regulating sequence producing a truncated N protein that enhances fitness by blocking