Does Everyone Have Their Own Personal Cloud?

It’s well known that trillions of bacteria live on and in the human body, making up what scientists call the human microbiome. But now a new study has gone a step further, suggesting that every person has their own unique “microbial cloud” they emit around them.

For this new study, published in the journal Peer, researchers instructed participants to sit alone in a sanitized chamber with filtered air, wearing identical, new, clean outfits provided by the scientists.

They were seated in a plastic rolling chair that had been disinfected and were given a sterilized laptop to communicate with the researchers, as well as for entertainment purposes. The particles given off by participants were filtered out of the chamber, collected, and genetically sequenced in order to identify the bacteria.

In another session, researchers compared the air in the occupied chamber to that of a neighboring, unoccupied chamber with three participants. They found they were able to determine the presence of a person based on just the bacteria from the air samples.

Researchers conclude that further research is needed because the setting of the experiment is obviously much different from real life circumstances.

This Week's Slice of History: Penicillin Discovered: Sept. 28, 1928

Sourced from: LiveScience, Forget Fingerprints: You Can Be Identified by Your 'Microbial Cloud'