Nelson Menolli has just joined our lab as a “Visiting Scholar” for one year. Nelson is a faculty member at the Federal Institute of Education, Science and Technology in São Paulo, Brazil. He was here previously, in 2012, as a visiting student. Today we also said goodbye to Chaoqun Wang, who is returning to the Guangdong Institute of Microbiology. Chaoqun was here for one year as a Visiting PhD student. It seems like she arrived only yesterday.