M 41
Rabies.
133. No human cases were reported during the year. Infected dog from the New Territories was notified.
Dysentery.
134. During November there occurred a serious epidemic of Shiga Dysentery.
135. The outbreak commenced on the 8th of November when twelve European children developed symptoms so severe that seven of them subsequently died.
136. From the 8th up to and including the 19th there were forty-seven cases all but four of whom were European children under ten years of age. The causative organism was in twenty-five cases proved to be the bacterium dysenteriae of Shiga, in four that of Flexner and in the remainder the organism was not isolated and identified though in the majority of cases the severity of the symptoms pointed strongly to Shiga infection.
137. There were altogether eight deaths, seven of which as mentioned above were cases which developed symptoms on the 8th. The remaining death was that of a Chinese infant the son of a Chinese servant engaged in a house where two children had died of the disease.
138. There being some indication that the infection was milk borne the public were advised to boil all milk and the various dairies were instructed to take special precautions. One of them the Dairy Farm decided to institute pasteurisation of all milk and cream before issuing, thus obviating any risk there might be of infection spreading from that source.
139. It having been ascertained that all the twenty-four cases taken ill on the 8th and 9th had consumed a special brand of milk designated "Nursery Milk" issued by the Dairy Farm, special attention was directed to this institution. The fact that thousands of individuals had daily consumed milk from this dairy without suffering any deleterious effects showed that the milk as a whole had not been at fault. It was assumed that one batch of nursery milk had accidentally become infected with Shiga bacilli, a thorough inspection of the premises failed to bring to light any source of contamination.
140. The farm could fairly be described as a high-class institution where special precautions were taken to produce a clean milk. It appeared to be the case that the milk was handled in a sanitary manner from the cow to the consumer and would be called Grade A in England.
141. A search was made to discover the source of infection and the stools of 113 workers were examined in an endeavour to find among them any Shiga carriers. No Shiga bacilli were isolated from any of the stools.
M 41
Rabies.
133. No human cases were reported during the year. infected dog from the New Territories was notified.
Dysentery.
One
134. During November there occurred a serious epidemic of Shiga Dysentery.
135. The outbreak commenced on the 8th of November when twe.ve European children developed symptoms so severe that seven of them subsequently died.
136. From the 8th up to and including the 19th there were forty-seven cases all but four of whom were European children under ten years of age. The causative organism was in twenty- five cases proved to be the bacterium dysenteriae of Shiga, in tour that of Flexner and in the remainder the organism was not isolated and identified though in the majority of cases the severity of the symptoms pointed strongly to Shiga infection.
137. There were altogether eight deaths, seven of which as inentioned above were cases which developed symptoms on the 8th. The remaining death was that of a Chinese infant the son of a Chinese servant engaged in a house where two children had died of the disease.
138. There being some indication that the infection was milk borne the public were advised to boil all milk and the various dairies were instructed to take special precautions. One of them the Dairy Farm decided to institute pasteurisation of all ilk and cream before issuing, thus obviating any risk there might be of infection spreading from that source.
139. It having been ascertained that all the twenty-four cases taken ill on the 8th and 9th had consumed a special brand of milk designated "Nursery Milk' issued by the Dairy Farm- special attention was directed to this institution. The fact that thousands of individuals had daily consumed milk from this dairy without suffering any deleterious effects showed that the milk as a whole had not been at fault. It was assumed that one batch of nursery milk had accidently become infected with Shiga bacilli, a thorough inspection of the premises failed to bring to light any source of contamination.
140. The farm could fairly be described as a high class institution where special precautions were taken to produce a clean milk. It appeared to be the case that the milk handled in a sanitary manner from the cow to the consumer and would be called Grade A in England.
was
141. A search was made to discover the source of infection and the stools of 113 workers were examined in an endeavour to find among them any Shiga carriers. No Shiga bacilli were isolated from any of the stools.
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