- Merck and Twitch collaborate on World MS Day to increase understanding of the impact of multiple sclerosis (MS) - Livestream event with Twitch influencers on May 30 will raise awareness and money for the MS International Federation and help connect people affected by the disease, in line with official World MS Day theme MS Connections Not intended for media in the UK and the U.S Merck, a leading science and technology company, today announced an innovative collaboration with Twitch, the world