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Flight Crew Health Stabilization Program (ASTP005)
Principal Investigator
Research Area:
Clinical medicine
Species Studied
Scientific Name: Homo sapiens Species: Human

During the early manned space flight program, the threat of an infectious disease occurrence in one or more crewmembers was always present. The risk of infection during the Gemini and Mercury missions was judged to be very low because of their short durations; however, some precautions, such as restricted access to the crew living quarters, were still taken to reduce the risk of crewmembers being exposed to disease.

With the increased length of missions during the Apollo program, these health risks increased. When clinical illnesses impacted preflight mission operations during Apollo 9 and 13, it became apparent that some type of preflight health stabilization program was imperative. Prior to Apollo 14, 57 percent of the Apollo crewmembers experienced some illness of varying degrees of severity at some time during the 21 days before launch. Based on observations of the first several Apollo flights and on the observation of crewmember activities during the Mercury and Gemini missions, the Flight Crew Health Stabilization Program (FCHSP) was developed and implemented for Apollo 14 and subsequent missions. The success of the FCHSP during the Apollo and Skylab missions was evidenced by absence or reduction of preflight, inflight, and postflight illnesses.

During the Apollo-Soyuz Test Project (ASTP), the FCHSP objectives remained the same: to minimize or eliminate the possibility of adverse alterations in the health of the crews during the immediate preflight, inflight and postflight periods.

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Ferguson JK. Flight Crew Health Stabilization Program. In: Nicogossian AE, compiler. The Apollo-Soyuz Test Project Medical Report. Washington, DC: NASA Headquarters; 1977:41-43. Report No.: NASA-SP-411. The Apollo-Soyuz Test Project. Medical Report.

Life Sciences Directorate. Medical Requirements Apollo Soyuz Test Project. Houston, TX: NASA Lyndon B. Johnson Space Center; 1974:12-16. JSC-09242.

Allergy and immunology
Clinical medicine
Primary prevention
Population surveillance

Data Information
Data Availability
Archive is complete. All data sets are on the Web site.
Data Sets + View data.

C reactive protein
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
ASTP 07/15/1975 07/24/1975 9 days, 7.5 hours

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Pamela A. Bieri
Institutional Support
National Aeronautics and Space Administration (NASA)