Of the 19, 18 are under treatment in Palakkad. One is in Malappuram.
The ban was announced from Monday to May 31, amidst an escalating number of cases.
About 45 people in the district are suffering from Kovid.
Kovid confirmed a total of 58 people in the district.
Kovid confirmed to 12 people who came through the Valayar border.
Corona confirmed the arrivals from states like Tamil Nadu, Karnataka, Telangana and Maharashtra.
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Two are from overseas, for smuggling people from other states along the Valayar border.
All three men on duty have been diagnosed with coronavirus.
Two people got infected through contact.