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The plaintiff filed a writ of preventive habeas corpus (habeas corpus preventivo) against Decree no. 56.120/2021 by the State Government of Rios Grande do Sul which required proof of vaccination against COVID-19 for people to be able to circulate and stay in public and private spaces.

By decision of 2 March 2022, the Superior Tribunal of Justice (no. 2021/0331687-3) dismissed the claim and observed that a preventive habeas corpus is not the proper instrument for challenging the abstract validity of normative measures.

Full text of the decision available at pt