Our multiscale investigation provided evidence suggesting that #XBB is the first documented example of a SARS-CoV-2 variant that increased its fitness (Re) through an recombination event rather than substitutions. 8/8
New data released by the US CDC show that “#COVID19 variant #XBB.1.5 is projected to make up to 40.5% of COVID-19 cases nationally”, and it is highly contagious and immune evasive. What measures has the US taken to prevent it from spreading to other countries?