The exposure to the dust, it turned out, protected the mice against future exposure to allergens by influencing the presence of specific bacteria in their gut. Two maps were drawn that showed routes for a never-built proposed expansion of the New York City Subway: one in 1929 and one in 1939. And a 2013 study found that mice exposed to dust from houses where families live with dogs were significantly less likely to develop respiratory infections and asthma. Recent research suggests that children who grow up around dogs, cats, and insects not only tend to develop less respiratory infections in the first year of their lives but are also at decreased risk of developing chronic respiratory conditions like asthma as they get older.Ī 2012 study of 397 newborns, for example, found that babies who were exposed to dogs and cats in their first year of life were far less likely to develop respiratory symptoms like wheezing and coughing and infections like otitis and rhinitis. From street and road map to high-resolution satellite imagery of 26 Federal Plaza. In fact, there's evidence that exposure to everyday pathogens, such as those carried on our skin, in our intestines, and on the bodies of pets and insects might actually be good for you - especially if you get exposed at a young age. Subway: New York City metro map, United States. Half the DNA the researchers found was of an unknown source.Ĭell Systems/Geospatial Resolution of Human and Bacterial Diversity with City-Scale Metagenomics Account icon An icon in the shape of a person's head and shoulders.
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