Transport and Storage of Fresh and Frozen Gastric Biopsy Specimens for Optimal Recovery of Helicobacter pylori

The viability of Helicobacter pylori in vitro and in gastric biopsy specimens was determined. Recovery rates were 94, 87, and 77% from biopsy specimens in Portagerm pylori in cooled containers after 1, 2, and 3 days of transport, respectively (n = 307), and 97% if stored and shipped in glycerol broth at −70°C (n = 232).