A Treatise on Hygiene and Public Health: With Special Reference to the TropicsScientific Publishing Company, 1953 - 787 sider |
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Side 175
... human consumption . More- over they have been found to be relatively non - toxic to most laboratory animals , except when given in excessively large doses . It has been suggested by Savage that many of the outbreaks in which no food ...
... human consumption . More- over they have been found to be relatively non - toxic to most laboratory animals , except when given in excessively large doses . It has been suggested by Savage that many of the outbreaks in which no food ...
Side 250
... human beings through pollution of soil and water , or through the agency of flies and other insects . In Western countries , where the water - carriage system is used for the removal and disposal of human excreta , most of these ...
... human beings through pollution of soil and water , or through the agency of flies and other insects . In Western countries , where the water - carriage system is used for the removal and disposal of human excreta , most of these ...
Side 556
... human beings by fleas which have fed on infected rats . The rats chiefly responsible are the black domestic rat ( Rattus rattus ) and the brown rat , Rattus norvegicus ( decumanus ) , which is the common water rat or sewer rat . R ...
... human beings by fleas which have fed on infected rats . The rats chiefly responsible are the black domestic rat ( Rattus rattus ) and the brown rat , Rattus norvegicus ( decumanus ) , which is the common water rat or sewer rat . R ...
Innhold
INTRODUCTORY | 1 |
Preventive MedicinePublic Health Administration | 20 |
CHAPTER II | 77 |
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Vanlige uttrykk og setninger
acid amount animal areas bacilli bacteria becomes Bengal beri-beri blood body boiling carbohydrate carbon carried carriers cause cent child chlorine cholera colour contains death diet digestion diphtheria disinfection drain dust dysentery effect eggs epidemic excreta factor faeces female fever filter filtered water flea ghee give heat hygiene immunity important inches India infection infectious diseases intestinal kala-azar known large number larvae latrines leprosy less malaria material measures mental method milk mortality mosquitoes necessary night-soil nutritive occurs organic matter parasites patient period persons pipe plague poisoning pollution population prevent protein public health removed rice salts sanitary sewage sewer skin slow sand filters small-pox soil solution spirochaetes supply surface symptoms tank temperature tion treatment tropical tuberculosis typhus urine usually vaccine vegetable ventilation virus vitamin washing water-supply