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Forget the quaint image of London's smog; Melbourne’s 'thunderstorm asthma' brings unexpected respiratory dramas.
Thunderstorm asthma
A couple years back an asthma episode in Australia claimed 10 lives. The culprit was something called "thunderstorm asthma," which is believed to occur when high winds sweep up pollen grains, which then swell in the moisture. The theory is that each grain ruptures into hundreds of even smaller pieces, multiplying the danger.