I apologise with the OP for (ab)using his/her thread for asking what's the general situation in Brasil.
I had in mind to spend a week there but if everything is closed it's obviously not worth it. I've just been in Brasil in the past (Rio, Minas and Iguazu) and was looking for Bahia (also Maranhao for Lencois but don't if it's the right period now), Santa Catarina or Rio Grande do Sul. Even also other areas advices are accepted but in any case, given the short stay, I would focalise on only one place and with "easy" connections.
I don't want to be stuck in a city.

Thanks to everybody who'll give an hint