Respiratory Infections

Respiratory Infections

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: high as the normal, while colored females experienced a rate only nine times as high. After the first of January, 1919, that is, after the severest period of the epidemic had passed, the colored group showed higher rates than the white, and the amount of excess approximated what had prevailed in normal times, as the distance from the explosive period of the epidemic increased. In the last quarter, April to June, the excess of colored males over white males was 94 per cent, and of colored females over white females, 83 per cent, figures which are almost identical with those for the twelve months ending September 30, 1918. The facts indicate with great elearness that the effect of the epidemic was much greater among white lives than among colored lives. This ditference wore off as the epidemic waned and conditions returned to normal, as they virtually did during the last quarter of this period, from April to June, when a marked excess of colored mortality is shown over white mortality. Table 4, Table LV below, gives the relation of colored to white mortality by quarters for each of the two sexes. TABLE LV INFLUENZA PNEUMONIA Damn RATE CLASSIFIED BY Sax AND BY QUARTERS, Oc'roB1-:11, 1918, T0 J UNE, 1919 PERCENTAGE concern or w111ri: PERIOD MALE FEMALE October, 1918, to June, 1919 97 101 October to December 83 87 January to March 139 133 April to June 194 183 Norm: October, 1917, to Sept, 1918 193 185 Total, 1911 to 1917 172 156 'This means ratio of colored to white with white taken as 100. In certain army camps of this country, where there were appreciable numbers of colored troops, the incidence was found to be greater in general among the white. Thus 25.7 per cent of 426,000 white soldiers had influenza as compared to 20.3 more

Product details

  • Paperback | 292 pages
  • 189 x 246 x 15mm | 526g
  • United States
  • English
  • black & white illustrations
  • 1236789857
  • 9781236789853