Science

International Space Station infested with bacteria "Like Gym on Earth", says NASA

International Space Station infested with bacteria

Some of the microbes pose health risks on Earth, such as Staphylococcus aureus - often found on the skin and inside the nose - and Enterobacter, which is associated with the digestive tract.

'Specific microbes in these indoor spaces have been shown to impact human health by influencing our susceptibility to allergies, infectious diseases, or sick building syndrome, ' he added.

Kasthuri also made it clear that determining the microbes in spacecraft will be quite crucial while conducting long space flights including future Mars missions.

Microflora can have a range of impacts on human health, so it pays to know exactly what you're up against - especially in space.

In addition to the danger of disease, the forming bacteria could lead to mechanical blockages on the station's infrastructure as it causes "microbial-induced" corrosion back on Earth. They argue that the integrity of the ISS itself should also be investigated, given that some of the microbes they found are associated with corrosion. The most prominent bacteria were Staphylococcus (26% of total isolates), Pantoea (23%) and Bacillus (11%).

Despite the exotic setting, the team used pretty run-of-the-mill culture techniques to sample the microflora of eight different locations inside the ISS.

The scientists found that while fungal communities were stable, microbial communities were similar across locations but changed as time passed.

"On Earth, they are predominant in gyms, offices, and hospitals, which suggests that the ISS is similar to other built environments where the microbiome is shaped by human occupation", the study noted. Samples taken during the second flight mission had higher microbial diversity than samples collected during the first and third missions.

And numerous organisms detected on the ISS are known to form biofilms that belong to both bacterial (Acinetobacter, Sphingomonas, Bacillus, Burkholderia, Corynebacterium, and Klebsiella) and fungal (Penicillium, Aspergillus, Cryptococcus, and Rhodotorula) genera.

Explaining "the potential ability to form biofilms and the magnitude of actual biofilm formation on ISS surfaces is important during long-term space missions to maintain structural stability of the crew vehicle when routine indoor maintenance can not be easily performed", the report reads. The study was published in the journal Microbiome, and it was the first to provide a comprehensive catalog of the fungi and bacteria that can be found lurking on interior surfaces in closed space systems.

The research could "also have significant impact on our understanding of other confined built environments on the Earth such as clean rooms used in the pharmaceutical and medical industries", Venkateswaran said.



Like this

loading...
loading...

Latest


10 April 2019
More than 40 zoo animals evacuated from Gaza Strip
There was a lack of medical supplies and facilities for the animals in the Gaza Strip, as Israel continues its illegal siege. They won Palestinian legislative elections in 2006 but then had a violent rift with the rival Fatah faction.

10 April 2019
Azarenka upsets Kerber, faces Muguruza in Monterrey Open final
World number 18 Keys is the first American victor of the tournament since Stephens three years ago. The Belarusian, 29, carried on but was clearly restricted before withdrawing when trailing 6-1 3-1.

10 April 2019
San Antonio's Ben & Jerry’s Offering Endless Ice Cream During Free Cone Day
On Free Cone Day , RMYA reps will be on-site to scoop your favorite flavors, share programming info and answer any questions. Yes, we're talking all 600-plus stores in 38 countries, including all the stores across 30 USA states and in Washington DC.

10 April 2019
Star Wars: Jedi Fallen Order by Respawn Teased With Damaged Lightsaber
Now after that quick recap we can take a look at EA's recent teaser, which clearly illustrates that the Jedi are fading away. It has yet to be seen if the game will make its original announced release window of Holidays 2019.

10 April 2019
Arkansas hires Nevada's Musselman as coach
And to welcome his wife Danyelle, their daughter Mariah and sons, Matthew and Michael to the Arkansas Razorback Family. Musselman has been a rumored candidate for other job openings, so based on that he's a good get for Arkansas.

10 April 2019
Auburn gymnast suffers gruesome injuries at regionals
Gymnastics fans at the Pete Maravich Assembly Center feared the worst for Auburn senior gymnast Samantha Cerio on Friday night. King Alexander visited Cerio in the hospital after the accident. "I think we were out of gas, emotionally spent", Graba said .

09 April 2019
Bank of America Raising Its Minimum Wage To $20 An Hour
A Bank of America logo is pictured in the Manhattan borough of New York City, New York, U.S., January 30, 2019. Bank of America said it last raised its minimum wage to $15 an hour two years ago.

09 April 2019
Andrew Cuomo backs bill to release Donald Trump New York tax returns
Under questioning at his confirmation hearing last August, Rettig pledged to uphold the political independence of the IRS. Democrats have demanded Trump release his tax returns for years, starting when he was a presidential candidate in 2015.

09 April 2019
Bears announce 2019 preseason schedule
The Rams caught somewhat of a break with only one of their preseason opponents also being on their regular-season schedule. He was pleased with the joint practices the Ravens had with the Los Angeles Rams and Indianapolis Colts in 2018.

09 April 2019
NYC declares public health emergency amid measles outbreak
Since the start of the year, the Centers for Disease Control and Prevention has tallied 465 measles cases in 19 states. The health commissioner issued a mandate that yeshivas must keep unvaccinated children out of school.