From the first wiggly protozoa here in the sea to the ape and finally to man.

The staff has to undergo sanitary examination (swabs from the throat and nose, checking stools for parasites and protozoa) and clinical examination, regularly, meaning at least twice a year, as well as additional tests should the doctor find them indicated.

The staff of the sanitary inspectorate of the Department for Inspection Affairs at the local level has to undergo the sanitary examination (swabs from throat and nose, checking the stool for parasites and protozoa) and clinical examination, as well as additional tests should the doctor find them indicated, regularly, meaning at least twice a year.