. Annual Report of the State Board of Health of Maryland for the Year Ending December 31, minations were made. The majority ofsuspicious cases furnished a partial re-action with loss of motil-ity, but no agglutination. Of the 1,114 cases tabulated, there w^ere : Male, 587—^er cent. Female, 527— per cent. A slight predouderanceof males. According to race : White, 1,009 ; Colored, 105. The following table shows the ages of the typhoid cases: Cases. Per Cent. 0- 1 1- 5 1 Koi 20 r^- 1. 85 5-10 95 10-15 160 .... 15-20 187 ..,. 20-25 165 .... 25-30 119 .... 30-
. Annual Report of the State Board of Health of Maryland for the Year Ending December 31, minations were made. The majority ofsuspicious cases furnished a partial re-action with loss of motil-ity, but no agglutination. Of the 1,114 cases tabulated, there w^ere : Male, 587—^er cent. Female, 527— per cent. A slight predouderanceof males. According to race : White, 1,009 ; Colored, 105. The following table shows the ages of the typhoid cases: Cases. Per Cent. 0- 1 1- 5 1 Koi 20 r^- 1. 85 5-10 95 10-15 160 .... 15-20 187 ..,. 20-25 165 .... 25-30 119 .... 30-35 97 .... 35-40 62 40-45 44 45-50 27 50 55 Cases Per Cent. ... Over 80. Unknown years, Under 30Over 30 y The largest number of cases occurred in the fourth quin-quennial period (15-20 years.) The following chart shows thedistribution of population and the typhoid morbidity accordiuo-to the number living at each age period : 134 REPORT OF THE. STATE BOARD OF HEALTH. 135 The number of lines to the inch indicates the annual mor-bidity per 10,000 persons living in each quinquennial ageperiod. The figures probably represent less than half the tcjtaltyphoid morbidity in the State. SEASONAL INCIDENCE. The typhoid morbidity rises suddenly about the beginningof August and drops with equal suddenness towards the end ofOctober. The mortality curve follows the morbidity curve inits rise and decline about one month later. A considerablenumber of cases occur in the winter months. SEASONAL DISTRIBUTION OF TYPHOID (POSITIVE KE-ACTIONS) ANDP8EUD0 TYPHOID (NEGATIVE RE-ACTIONS.) Cases. January 48 February 27 March 49 April 62 May 51 June 44 July 94 August 209 September 175 October 164 November 98 December 85 December to 322 June to 784 Positive. Negative. Per Cent. Cases. Per Cent. 62 63 80 75
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