Stay home for seven days; Carry out a screening test five days after contact with a sick person; 21/10/2020: the duration of the quarantine increases to 10 days; 02/12/2021: Vaccinated persons must remain in quarantine until they receive a negative result from their PCR test; 04/01/2022: Fully vaccinated high-risk contacts should not go into quarantine; but should apply strict preventive measures (face mask; preferably FFP2); distance; no contact with vulnerable people up to 10 days after high-risk contact. Partially vaccinated high-risk contacts should go into quarantine for 7 days. From day 4; the quarantine can be lifted on condition of carrying out daily negative self-tests and strictly applying preventive measures (mouth mask; preferably FFP2); social distance; no contact with vulnerable people; up to 10 days after high-risk contact. High-risk; unvaccinated contacts should enter quarantine for 10 days. From the 7th day; the quarantine can be lifted provided that daily negative self-tests are carried out; and that preventive measures are strictly applied (mouth mask; preferably FFP2); distance; avoidance of contact with vulnerable people up to 10 days after high-risk contact. These rules also apply to secondary education; 10/01/2022: for basic education schools; a class must be quarantined for 5 days as soon as there are 4 (or 25% of the class) of infected cases (with or without symptoms) in this class. New test and quarantine policy places more importance on self-tests; 17/03/2022: no longer a requirement for testing or quarantine for the general population.