Yohei invited his postdoc advisor (2008-2015) Ari Helenius of ETH Zurich to the CMM seminar on the 2nd of April. About 100 people attended this popular seminar and was a great success. Ari Helenius' seminar announcement shown at the foyer displays of the Biomedical Sciences building. Ari's seminar on "Cell entry and Uncoating Strategies used by Animal Viruses". Ari gave a historical overview of virus entry studies and used simian virus 40 (SV40) as a good example of how an an