Fig. 2: Current and future immune-related countermeasures in space.
From: Next generation of astronauts or ESA astronaut 2.0 concept and spotlight on immunity

Prevention, technological development for inflight diagnosis, countermeasures available for use in space, and potential future countermeasures. The green background indicates those already available and used in space, the yellow background those that are not yet used in space, and the red background points out potential future therapy to be further investigated.