Show Rural Background And Polio Dr Edward Davens chief of the State Bureau of or Preventive Medi fedi Medicine cine in in Maryland said recently that grown grownups ups w who o had been reared reared reared rear rear- ed on farms were more susceptible to polio than adults reared in larger larg largo er towns and cities Dr Davens said those who had been reared in thickly thickly settled settled areas were usually exposed to polio during childhood though quite often they were not aware they had bad suffered slight attacks attacks attacks at at- tacks of the disease The doctor also revealed that there are re about unknown cases for every case w which ch is definitely diagnosed as poli polio Some of the unknown cases are arc t taken ken for the ordinary cold and the patient recovers recovers recovers re re- re- re covers quite quickly Patients who suffer such mild attacks and come through them successfully ly buildup build buildup buildup up an immunity which helps them ward off the disease in later life lIre Children who are are reared in sparsely settled areas are often not exposed to these mild attacks and therefore do not build up an im- im unity Dr Davens Daven admitting that much of this theory n 1 polio is still in v. v the stage nevertheless feels that adults who have been raised on farms fanus or in sparsely settled areas should be extremely extremely ex ex- extremely cautious about exposing themselves to polio infested areas |