PREVALENCE OF DISEASE. No health department, State or local, can effectively prevent or control disease without knowledge of when, where, and under what conditions cases are occurring. UNITED STATES. CURRENT STATE SUMMARIES. These reports are preliminary, and the figures are subject to change when later returns are received by the State health officers. State. Chicken pox... Diphtheria...... SUMMARY OF CASES REPORTED MONTHLY BY STATES. The following summary of monthly State reports is published weekly and covers only those States from which reports are received during the current week. Referred by RECIPROCAL NOTIFICATION, NOVEMBER, 1923. Cases of communicable diseases referred during November, 1923, to other State health departments, by departments of health of certain States. |