Chilly weather could impede the immune reactions that most effectively contain viruses like the common cold.
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Viruses that attack bacteria may be an important component of our gut microbiota.
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Christian de Duve chose to be euthanized at home in Belgium at age 95.
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Researchers use a protein-lipid complex found in human breast milk to increase the activity of otherwise-ineffective antibiotics against drug-resistant pathogens.
Hybrid viruses derived from an H5N1 bird flu strain can infect guinea pigs through the air.
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