The Covid-19 Scientific Committee of Baja California announced an updated school sanitary protocol in order to keep campuses open.
The state Department of Public Health said in a prepared statement that schools must keep two filters to detect suspicious Coronavirus cases.
The first filter calls parents to keep children at school in case of respiratory illnesses and test them to Covid-19.
If the test turns positive, the student must stay at home for seven days.
At schools, if teachers and staff detect a potentially positive case the student must be separated from the rest of the pupils and contact parents for testing.
So far, few of the over a million Baja California students have tested positive to the Coronavirus. The agency said that if confirmed cases in a single classroom surpass 10 percent of students, public health authorities must be notified for a thorough investigation.