The study aims to compare the experiences, including injection-related reactions (IRRs) of patients newly receiving ofatumumab to those starting to receive ocrelizumab SC formulation

Inclusion Criteria:

1. Ability to use a mobile device or computer with broadband internet access (or data streaming available)
2. Ability to read, understand, and respond in English
3. Adult aged 18 years of age or over at the time of the survey
4. Self-confirmed diagnosis of MS
5. Prescribed either OMB or OCR SC and will receive their first injection (Day 0) followed by completing the study survey between Day 1 and Day 7

Exclusion Criteria:

1. Participated in an OMB or OCR randomized clinical trial
2. Previously treated with OMB or OCR SC
3. Cognitive impairment that impacts the patient's ability to participate in a survey study

Patients with MS who are prescribed and initiating OMB or OCR SC and who are living in the US at the time of the survey will be invited to participate following a referral from their healthcare providers