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Ideas Percolate over E. coli Engineered To Modify Caffeine

Carol Potera

Some people crave espressos or other caffeine-spiked drinks. Joining them in spirit is Pseudomonas putida CBB5, a soil bacterium that demethylates caffeine to xanthine.

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Close Watch over Deadly H7N9, H5N1 Influenza Strains

Jeffrey L. Fox

Although neither the H7N9 nor H5N1 strains of influenza virus is readily transmissible among humans, both strains are more deadly than seasonal flu and would pose huge public health challenges if either were to break through that transmissibility constraint, according to several leading influenza experts.

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Dispute Flares over Bacteria in Packaged Ground Turkey

Barry E. DiGregorio

Ground turkey from U.S. supermarkets frequently contains fecal-associated bacteria, including Escherichia coli and Enterococcus spp., and occasionally frank pathogens such as methicillin-resistant Staphylococcus aureus (MRSA), according to Urvashi Rangan and her collaborators of Consumers Union of Yonkers, N.Y.

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Database Tracks, Codifies Dynamics of Antibiotic Resistance

David C. Holzman

The journals are awash with evidence of expanding antibiotic resistance. To help deal with that flood, Gerard D. Wright of McMaster University in Hamilton, Ontario, Canada, and his collaborators assembled what they call the Comprehensive Antibiotic Resistance Database (CARD).

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Men and Women Respond Differently to Some Viruses, Vaccines

Shannon Weiman

Estrogen and other sex hormones put women at greater risk than men in their responses to some viral infections and vaccines, according to several participants who spoke during the symposium “Men, Women, Infection, and Infertility,” convened as part of the 2013 ASM General Meeting last May in Denver.

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