A rare phenomenon called "thunderstorm asthma" is currently plaguing the Australian city of Melbourne.

A rare phenomenon called "thunderstorm asthma" is currently plaguing the Australian city of Melbourne. http://www.natureworldnews.com/articles/32908/20161128/thunderstorm-asthma-what-why-happen.htm On Monday evening, a sudden drop in temperature from 35 degrees Celsius along with severe thunderstorms triggered mass pollen allergy asthma attacks, where over 8,000 people in the state of Victoria were rushed to the hospital. To date, death toll has risen to six and three more are in critical condition, BBC reports. Within a four-hour period that day, Ambulance Victoria had received over 1,900 calls and extra 60 ambulances were deployed, together with police and several groups of firefighters, Business Insider reports. What is thunderstorm asthma? WERBUNG According to the American Academy of Allergy Asthma and Immunology (AAAAI), asthma is a condition characterized by inflamed bronchial tubes or the airways in the lungs, typically triggered by an allergic reaction. In Australia, the asthma attack was triggered by hay-fever, the allergy to pollen. Heavy rain can make hay-fever symptoms - like asthma - worse, said the Australasian Society of Clinical Immunology and Allergy. Read more:http://www.natureworldnews.com/articles/32908/20161128/thunderstorm-asthma-what-why-happen.htm