With no hospitals or medical specialists in space, NASA and other space agencies have always been concerned about astronauts getting sick on a mission. To minimize the chances of this happening, typically spend the two weeks before being quarantined.
A Covid-19 superspreader event at the space station would have disrupted operations.
The interior of the space station is equivalent in volume to a Boeing 747 airliner, so there would be room for infected crew members to isolate themselves. But space station operators certainly wouldn’t want to worry about the virus spreading through the station’s perpetually filtered and recycled air.
During a press conference last week, Shane Kimbrough, the NASA astronaut who is the commander of Crew-2, said that all four astronauts had received Covid vaccinations. “I guess it went well,” he said. “We all have slightly different reactions, just like most people do. So we are no different in this respect. But we are grateful to have the vaccines. “
The three astronauts who launched a Soyuz rocket towards the station earlier this month – Oleg Novitskiy and Pyotr Dubrovnik of the Russian space agency and Mark Vande Hei of NASA – have also been vaccinated.
The four astronauts on the Crew-1 mission are not, because no vaccines were available when they were launched last November. When they return to Earth, all humans who are not on the planet will be vaccinated against Covid-19.