108 MILK HYGIENE 



The state of health of the herd and the condition of 

 cleanliness of the premises aroused no suspicion. After 

 cleansing and disinfecting and after discontinuing the 

 business for a short period, the epidemic ceased at once, 

 although a few individual cases still occurred that were 

 caused by infection that had taken place earlier. 



The milk of these same shops was infected anew 

 in the middle of October, probably by a girl who was 

 believed to have become infected during a stay in a place 

 near Copenhagen. Shortly afterward, the two sons of 

 the herdsman were infected by the milk, and later three 

 other persons. By means of a temporary prohibition 

 of the sale of raw milk and raw cream from the herd and 

 by thorough cleansing, the epidemic was checked. 



The third epidemic was of greater extent. In the 

 middle of November a number of typhoid cases were 

 found in a certain section of the city and suspicion soon 

 fell on a certain milk shop. The further development of 

 the epidemic, during which the shopkeeper became ill, 

 confirmed these suspicions. Altogether, 71 persons were 

 infected directly or indirectly through the milk, which 

 must have been most contaminated from October 26tli to 

 November 1st, judging from the times of ajopearance 

 of disease and the number of persons affected. Despite 

 the investigation which was instituted, the ultimate ori- 

 gin of the infection was not discovered. 



H. Moller has observed and described as follows an 

 epidemic caused by milk from a cooperative dairy, which 

 is rather characteristic : "-^ Seven farms supported a 

 cooperative dairy. A case of typhoid fever occurred on 

 one of the farms ; the dairy continued to receive the milk 

 but did not boil the skim milk that was returned. "With 

 brief intermissions, 40 persons, altogether, became in- 



"Ugeskrift for Laeger, 1890, p. 128. 



