A security guard wearing a face mask stands by the building of Brazil's central bank in Sao Paulo, Brazil, on June 25, 2020. (Xinhua/Rahel Patrasso)

A man wearing a face mask passes by the building of Brazil's central bank in Sao Paulo, Brazil, on June 25, 2020. (Xinhua/Rahel Patrasso)

A man wearing a protective shield is seen at a supermarket in Sao Paulo, Brazil, on June 25, 2020. (Xinhua/Rahel Patrasso)

A woman wearing a face mask is seen at a supermarket in Sao Paulo, Brazil, on June 25, 2020. (Xinhua/Rahel Patrasso)

Local residents wearing face masks are seen at a supermarket in Sao Paulo, Brazil, on June 25, 2020. (Xinhua/Rahel Patrasso)