Bus depot pop-up clinics highlight Minnesota's evolving vaccine strategy Gov. Tim Walz announced Wednesday, May 5, that 2 million Minnesotans have now received a complete COVID-19 vaccine dose. Written By: Dan Kraker / MPR News | 12:58 pm, May 6, 2021 × St. Louis County public health workers Emily Lian and Stephany Medina (left) answer Chelsea Albin’s questions about COVID-19 vaccines at a pop-up clinic at the Duluth Transportation Center on Tuesday, May 4, 2021. Dan Kraker / MPR News DULUTH -- On Tuesday afternoon, St. Louis public health nurse Emily Lian sat down with Chelsea Albin at the Duluth Transportation Center, explaining different COVID-19 vaccine options. "If you do Johnson & Johnson, it’s one and then you’re done,” explained Lian. “No more?” asked Albin. “None,” replied Lian.