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Allergens and pollution combine to increase asthma risk

Children living in poverty in California and elsewhere in the U.S. are much more likely to suffer from asthma than their wealthier peers. A new study suggests that a symbiotic relationship between pollution and allergens common in low-income urban areas makes children more vulnerable to the chronic and potentially life threatening illness. Allergies to roaches have been long understood as a factor in higher asthma rates among children in poorer neighborhoods.