"Unprecedented 613-Day Covid Infection Raises Concerns Over Mutations"
A 72-year-old Covid-19 patient with a weakened immune system incubated a highly mutated novel strain over 613 days, eventually succumbing to an underlying illness. The virus developed resistance to sotrovimab and acquired over 50 mutations, including some that suggested an enhanced ability to evade immune defenses, according to researchers at the University of Amsterdam.