Show Birds May Be Poll Polio Carriers WASHINGTON Investigations Investigations Investigations launched to determine de de- de- de have been termine whether birds might constitute a n source of infantile paralysis paralysis' virus according to a aLos aLos aLos Los Angeles doctor visiting here Dr R. R DC Rohan Barondes said that a recent study of factors factors factors fac fac- tors possibly associated ted with polio epidemics shows a definite definite ite correlation with the harvesting harvesting harvest harvest- ing log of the fruit and vegetable crops and to changes in climate climate climate cli cli- mate weather humidity and the presence of ot animals insects and birds He added A source of infection apparently apparently apparently overlooked is the contamination contamination con con- of fruit such as cherries grapes apricots bernez berries berries ber ber- ries nez and so forth and vegetables vegetables vegetables bles such as lettuce radishes cucumbers rs and so forth by bird droppings manure and contamination contamination contamination by wildlife fe One often has observed such food to be pecked bird gnawed and soiled and frequently eaten unwashed unpeeled and un un- cooked |