The MLB said 38 people tested positive for COVID-19 in the initial phases of testing for summer camp.
According to the league's 2020 operations manual, all staff and players were tested for COVID-19 and tested for antibodies before entering camp.
The MLB said that 31 of the 38 positive tests were players and the rest were all staff members.
The 38 positive tests were out of the 3,185 people tested, which comes out to about 1.2 percent of the samples.
The positives came from 19 of the 30 teams in the league.
The operations manual said that a player or staff member who tests positive will have to immediately self-isolate. They will not be allowed back into the facilities until they have tested negative and are asymptomatic.
Additionally, the manual said that players who have a temperature above 100.4 degrees or come into contact with someone with COVID-19, will be immediately tested and isolated.
All members of the staff will have temperatures taken twice during the day.