What happens if someone gets sick in space?

If an astronaut gets sick in space, they receive immediate care from a Crew Medical Officer (CMO) trained in emergency procedures. Spacecraft like the International Space Station (ISS) have medical kits, medicines, and diagnostic tools like ultrasound machines. Astronauts also use telemedicine to consult doctors on Earth in real-time. Minor health issues are treated onboard, while serious medical emergencies may lead to an emergency return to Earth using spacecraft like Crew Dragon or Soyuz. Strict pre-launch quarantine and hygiene protocols help prevent sickness in space.