In the air there are more than 1,800 types of bacteria

According to a study by American scientists, the air we often breathe up to 1,800 types of bacteria every day, including many harmful bacteria combined with harmful bacteria to attack human health. .

Every day, Lawrence Berkeley National Scientists are part of the Vision and Science Division (The Earth and Sciences Division), which sampled the atmosphere of the cities of San Antonio and Austin, Texas State in 17 weeks of experiment.

(Photo: genomenewsnetwork) Two cities sampled for this study have similar characteristics of population, terrain and natural characteristics. Scientists tested these air samples by using a device containing microscopic DNA to probe the genes that produce the proteins of the bacteria.

The device, called PhyloChip , can detect 9,000 versions of genes and each gene version corresponds to a bacterium. The results showed that scientists detected more than 1,800 bacteria in air samples. The remarkable thing in these experiments is that terrain does not have a difference in the number of bacteria in the samples.

Time and weather are different changes of bacteria, especially in warm and dry weather, the number of bacteria increases significantly.

This has helped scientists identify the germs of weather-related diseases and detected signals that attack bacteria that affect human health.

At the same time, these experiments have helped scientists determine the spread of bacteria in the air, such as the dust from the Sahara desert that spread to North America with asthma. people around here.

Scientist Gary Andersen, head of the Lawrence Berkeley National Laboratory at the Earth and Sciences Division (The Earth and Sciences Division) said, " Before anyone could do this research, no one could imagine. The diversity of airborne bacteria in the air is so much ".

The success of this study has been downloading in the National Academy of Sciences, USA.