"After four months at the forefront in the Beni Department, today, when I took a test, my result was positive. As long as my health allows, I will continue to work from isolation. Let's move forward together", the minister wrote on Twitter.
The Energy Ministry said in a statement that Guzman's health was stable at the moment.
As of 3 August, Bolivia has 80,153 confirmed coronavirus cases, with 3,153 deaths and 24,156 recoveries, local Health Ministry reports.
The World Health Organization declared the outbreak of the new coronavirus a pandemic on 11 March. According to the WHO, the global coronavirus death toll has surpassed 686,000 people, with the number of cases worldwide exceeding 17.9 million.