Patient(11) multiple sclerosis(9) COVID-19(9) SARS-CoV-2(9) Multiple(9) sclerosis(9) cohort study(6) finding(5) SARS-COV-2 infection(5) with COVID-19(5) participant(5) patients(5) Relevance(5) Hospitalized(5) objective(5) Result(5) measure(5) response(5) setting(5) reported(5) Importance(5) Point(5) immune response(3) Clinical severity(3) Corticosteroid(3) Odds ratio(3) intensive care(3) black(3) risk factor(3) COVID-19 infection(3)