Old bus to help West Michigan organization serve medical needs in Mexico Fox 17's Marisa Oberle traveled to Middleville to speak with Without Borders, who is working to bring medical care to Mexico City and last updated 2021-05-23 22:19:43-04 KENT COUNTY, Mich. â A West Michigan nonprofit organization is converting an old bus into a mobile medical unit. âThis bus is going to be used to help treat people where theyâre at,â said Erika Plunkett, executive director of AMA Without Borders. This week, Plunkett will drive off in the big, green machine, which was donated by a group of pastors, to Zapopan, Mexico.