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Iron build-up in the lung cells and tissues is associated with worse asthma symptoms and lower lung function, according to new research published in the European Respiratory Journal.

The researchers say that the study, which includes data from patient samples and mouse models, is the first to definitively show a relationship between build-up in the and tissues and the severity of asthma.

Experimental models also showed that iron build-up in the lungs triggers immune system responses that are typical in asthma and lead to worsening of the disease. This includes effects

Pastors wearing face masks attend a service at the Yoido Full Gospel Church in Seoul, South Korea, March 15, 2020. (AP Photo/Ahn Young-joon)

Social distancing could qualify as an oxymoron in Italy, where walking arm-in-arm with friends, kissing neighbors in greeting and patting the heads of babies are part of the demonstrative culture.

But a has rapidly redefined the concept of respecting for tactile Italians, as well as for South Koreans, Filipinos, Americans, Spaniards and citizens of many other crowded parts of the world.

Whether acting under government orders or following basic public health advice, people

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China reported just one new domestic case of the coronavirus on Wednesday but a dozen more imported infections.

For the second consecutive day there was only one more fresh in Wuhan, the where the virus first emerged late last year, the National Health Commission said.

New cases in surrounding Hubei province have now been in the single digits for the past seven days, down from a peak of several thousand per day in early February.

Wuhan and its 11 million people were placed under strict quarantine on January 23, with the rest of