One in five people taking nirmatrelvir-ritonavir treatment were found to experience rebound COVID

A new study by researchers at Mass General Brigham found that one in five people taking Nirmatrelvir-ritonavir treatment, commonly known as Paxlovid, to treat severe symptoms of COVID-19 experienced a positive test result and excretion of live and potentially contagious virus after initial recovery and negative test; a phenomenon known as virological rebound. In contrast,…