Studying the 5 second rule, antibiotic resistance genes in indoor dust and sewers, Legionella in the air, and water treatment. Microbes on the floor Longer Contact Times Increase Cross-Contamination of Enterobacter aerogenes from Surfaces to Food — Robyn C. Miranda — Applied and Environmental Microbiology ($25 for 1 day) Bacterial cross-contamination from surfaces to food can …