EXPERIMENTAL STUDIES ON THE INCUBATION PERIOD AND RELAPSE PATTERNS IN VIVAX MALARIA IN WEST HUNAN

›› 1989, Vol. 7 ›› Issue (3): 181-183.

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EXPERIMENTAL STUDIES ON THE INCUBATION PERIOD AND RELAPSE PATTERNS IN VIVAX MALARIA IN WEST HUNAN

  

  • Received:2017-01-09 Revised:2017-01-09 Online:1989-08-31 Published:2017-01-09

Abstract: The paper reports on some biological characteristics of Plasmodium vivax isolated from Cili County of Hunan Province.27 volunteers inoculated with sporozoites were observed for 1.5 to 2 years. Treat-ment with chloroquine 1.5g base for 3 days was initiated on tne first day of tne pri mary attack and of each relapse.The data indicate that tne first latent period in 13 cases developing malaria after short incubation period is very long, being 243.4 (191-297) days; however it is always short, being 55.3 (51-80) days in 14 patients with long incubation period. Definite relationship existing between incubation period and relapse patterns in vivax malaria is thus demonstrated.