A little over a month after Thermo Fisher Scientific ($TMO) closed its gigantic $13.6 billion buyout of Life Technologies, it has sealed a much more targeted deal. The Waltham, MA, laboratory equipment giant said it has completed the acquisition of Prionics AG, a privately held Swiss animal health diagnostics company. Neither side is disclosing financial details. But the agreement gives Thermo Fisher access to more than 50 diagnostic test kits, plus accessories and biochemicals that will help expand similar offerings under the Life Technologies brand. Prionics, which first launched in 1997, maintains a major manufacturing facility in the Netherlands, according to the deal announcement. Item