. The Journal of hygiene . 9 houses,of which 42 were attacked, furnishing 66 cases; that is, one in every64 houses was attacked. During the same period 85 other distributorsnot receiving X milk supplied G922 houses; and 9 cases occurred in asmany houses, that is, one in every 769 houses was attacked, an incidencenot indicating any unusual prevalence of scarlet fever in a large city.(Clifton has a population of 47,301. It is a registration sub-district ofBristol, which has a population of 324,973.) Y obtained a part of his milk from a dairy-farm A, but as A alsosupplied the retailers D and E, w
. The Journal of hygiene . 9 houses,of which 42 were attacked, furnishing 66 cases; that is, one in every64 houses was attacked. During the same period 85 other distributorsnot receiving X milk supplied G922 houses; and 9 cases occurred in asmany houses, that is, one in every 769 houses was attacked, an incidencenot indicating any unusual prevalence of scarlet fever in a large city.(Clifton has a population of 47,301. It is a registration sub-district ofBristol, which has a population of 324,973.) Y obtained a part of his milk from a dairy-farm A, but as A alsosupplied the retailers D and E, whose rounds were absolutely free fromscarlet fever, this farm is at once cleared from any suspicion. 1 Medico-Chirurg. Trans, of the Royal Med. and Chirurg. Soc. of London, Vol. lxxxi. 1898, p. 125. Transactions of the Epidemiological Society of London, Vol. xvii. Session1897—98, p. 78. ^ % JOURNAL OF HYGIENE Vol I. C. 1 Houses Supplieil 10Attacked 0 C H k Illustrating the Graphic Method of tracing ti applied to an Outbr. Houses Supplied 22Attacke|Attacked .Cases Three Distributors supplying 269 houses. 42 houses attacked.—One house in every 6-4. R T Distribution of Milk-carried Scarlet Feverin Clifton, 1901. PLATE VI,
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