Editing Quarantine (section)

===Apollo series space explorers, 1969–1971===
Between 24 July 1969 and 9 February 1971, the astronauts of [[Apollo 11]], [[Apollo 12]], and [[Apollo 14]], were quarantined (in each case for a total of 21 days) after returning to Earth, initially where they were recovered, and then were transferred to the [[Lunar Receiving Laboratory]], to prevent possible [[interplanetary contamination]] by microorganisms from the [[Moon]]. All lunar samples were also held in the [[Biosecurity|biosecure]] environment of the Lunar Receiving Laboratory for initial assay.<ref>{{Cite web |date=2021-10-13 |title=Building on a Mission: The Lunar Receiving Laboratory - NASA |url=https://www.nasa.gov/history/building-on-a-mission-the-lunar-receiving-laboratory/ |access-date=2024-04-11 |language=en-US}}</ref>