A medical worker registers information of a resident for COVID-19 test in San Miguel of Santiago, Chile, July 7, 2020. Chile on Tuesday reported a total of 301,019 cases of novel coronavirus infection and 6,434 deaths from the disease. (Chilean Health Ministry/Handout via Xinhua)

A medical worker takes a swab sample from a resident for COVID-19 test in San Miguel of Santiago, Chile, July 7, 2020. Chile on Tuesday reported a total of 301,019 cases of novel coronavirus infection and 6,434 deaths from the disease. (Chilean Health Ministry/Handout via Xinhua)

A medical worker takes a swab sample from a senior resident for COVID-19 test in San Miguel of Santiago, Chile, July 7, 2020. Chile on Tuesday reported a total of 301,019 cases of novel coronavirus infection and 6,434 deaths from the disease. (Chilean Health Ministry/Handout via Xinhua)

Residents wait to do tests for COVID-19 in San Miguel of Santiago, Chile, July 7, 2020. Chile on Tuesday reported a total of 301,019 cases of novel coronavirus infection and 6,434 deaths from the disease. (Chilean Health Ministry/Handout via Xinhua)

A medical worker takes a swab sample from a senior resident for COVID-19 test in San Miguel of Santiago, Chile, July 7, 2020. Chile on Tuesday reported a total of 301,019 cases of novel coronavirus infection and 6,434 deaths from the disease. (Chilean Health Ministry/Handout via Xinhua)