Annals of tropical medicine and parasitology . all the cases (seventy-two of seventy-six)were infected in Salonika. In Series II thirty-nme were infected inSalonika, forty-three in E. Africa. Table 3 : Strain of parasite. Salonika E. Africa Cases Cures Cases Cures Series I Series II 172 65%39 3% 43 7% Table III shows: — (a) That in the second series of observations the percentage ofcures is practically the same whether the cases were infected inSalonika or E. Africa. {b) That amongst the Salonika cases 65 per cent, of the firstseries were cured, but only 3 per cent, of the second se
Annals of tropical medicine and parasitology . all the cases (seventy-two of seventy-six)were infected in Salonika. In Series II thirty-nme were infected inSalonika, forty-three in E. Africa. Table 3 : Strain of parasite. Salonika E. Africa Cases Cures Cases Cures Series I Series II 172 65%39 3% 43 7% Table III shows: — (a) That in the second series of observations the percentage ofcures is practically the same whether the cases were infected inSalonika or E. Africa. {b) That amongst the Salonika cases 65 per cent, of the firstseries were cured, but only 3 per cent, of the second series. Conclusion: This factor cannot explain the discrepancy. Factor Length of time between date of infection and treatmentsunder discussion The date of infection cannot be determined with exactitude, butwe have been able to ascertain : — A. The length of time between first reporting sick for malariaand the treatments. 205 Table IV. Factor 4A : Length of time between first reporting sick and the treatments. 13 months upwards Treatment. Table IV shows : — {a) That in both the first and second series of observations thereis not much difference in the percentage of cures whether the lengthof time since first reporting sick is under twelve months or overtwelve months. {b) That of the cases in which the length of time since firstreporting sick is under twelve months the percentage of cures ismuch greater in Series I than in Series II; this applies also to thecases in which the length of time since first reporting sick is overtwelve months. B. Length of time between leaving the infected area and dateof treatments. Table 4B : Length of time between leaving infected area and date of treatments. Treatment 0-9 m snths 10 months upwards Cases Cures Cases Cures Series I Series II 1864 6%3% 75% Table V shows : — {a) That in the first series of observations there is not muchdifference in the percentage of cures obtained, whether the length oftime since leaving the infect
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