Australia: Storms 'asthma' cause thousands of people to be hospitalized

On November 24, Australian officials said the "asthma" storm that appeared in the country three days ago left four people dead and three in critical condition and thousands of people hospitalized.

According to Victoria head of state health agency Jill Hennessy, about 8,500 people are hospitalized, mostly in Melbourne - the second largest city in Australia.

Rye is believed to be the culprit in the "asthma" storm in Australia.(Photo: ABC News).

Four patients died between the ages of 18 and 35. The people affected by the storm all suffered from respiratory and cardiovascular problems.

This unusual phenomenon is known only once in Australia.

According to experts, when pollen in a grass used for livestock in Australia becomes wet due to moisture or water, it will spread into small pieces, penetrating the lungs of people through the nose.

When entering the lungs, allergens can cause asthma, small bronchial tubes are inflamed, causing many mucus to shrink, making people unable to breathe.

Australian officials say Melbourne is an easy place to "storm asthma" because it usually grows in parks and farms.