Expedition 74 Probes Pneumonia Bacteria’s Heart Damage on ISS as 25% of CAP Patients Develop Disease
Updated
Updated · NASA · May 13
Expedition 74 Probes Pneumonia Bacteria’s Heart Damage on ISS as 25% of CAP Patients Develop Disease
2 articles · Updated · NASA · May 13
Expedition 74 astronauts are infecting stem cell-derived heart tissues on the ISS to track how Streptococcus pneumoniae can trigger lasting cardiac damage after pneumonia.
Microgravity helps intensify bacterial virulence and drug resistance, giving researchers a clearer split between infected and control samples and exposing cellular responses that are harder to detect on Earth.
Streptococcus pneumoniae is the leading cause of community-acquired pneumonia, and more than a quarter of adults hospitalized with CAP develop heart disease; survivors of severe cases remain at elevated risk even after infection clears.
More than 25 years of ISS biomedical work underpin the project, which researchers say could identify treatment targets for Earth patients while shaping health strategies for long-duration missions and future habitation beyond Earth.
With space station samples arriving in June, what secrets will they unlock about infection's toll on the heart?
Why send germs to space to understand how they attack human hearts back on Earth?
Space-Based Insights Into Pneumonia and Heart Disease: ISS Expedition 74’s Research and Its Implications for Earth
Overview
ISS Expedition 74 is conducting pioneering research to understand how Streptococcus pneumoniae, the main cause of community-acquired pneumonia, can lead to long-term heart damage. By using the unique microgravity environment of the International Space Station, scientists can observe infection and heart responses that are hard to detect on Earth. The ISS provides a special platform where researchers can study disease mechanisms and test new treatments more effectively. Microgravity not only helps reveal hidden details of how bacteria harm the heart, but also supports the development of better drugs and diagnostic tools for both astronauts and people on Earth.