‘Spacebug’ Found on ISS: A Threat to Sunita Williams and Crew
NASA’s astronaut Sunita Williams, along with eight other crew members, faces a new challenge aboard the International Space Station (ISS). Scientists have detected a superbug, Enterobacter bugandensis, within the station’s confined environment, raising concerns for the crew’s health.
The threat of multi-drug-resistant bacteria
Enterobacter bugandensis, a multi-drug resistant bacterium, has evolved and become more potent in the ISS’s closed system. Often termed a “superbug,” it poses a significant threat due to its resistance to multiple antibiotics, potentially affecting the respiratory systems of astronauts.
Not an extra-terrestrial life form
These “spacebugs” are not extraterrestrial. Instead, they travel with astronauts to the ISS, becoming hidden co-passengers. The superbug was discovered in samples isolated from the station, with scientists identifying 13 strains of the bacterium.
Scientific study and findings
A new study funded by an Ames Space Biology grant, led by Principal Investigator Dr. Kasthuri Venkateswaran of NASA’s Jet Propulsion Laboratory (JPL), examined the isolated strains. The study provides insights into how benign microorganisms can adapt and evolve into opportunistic human pathogens in the unique conditions of the ISS.
Dr. Venkateswaran stated, “Our research uncovers how certain benign microorganisms help to adapt and survive opportunistic human pathogen, E. bugandensis, in the unfavorable conditions of the International Space Station.” The findings are crucial for understanding microbial behavior and developing strategies to protect astronauts’ health.
Current mission and safety measures
Sunita Williams and her colleague, Astronaut Barry Eugene “Butch” Wilmore, boarded the new Boeing Starliner spacecraft on June 6. They are scheduled to spend nearly a week in the low-earth orbiting laboratory before returning to earth. As the crew navigates this new challenge, NASA continues to prioritize their health and safety through ongoing research and innovative countermeasures.