MALARIA 



95 



crescent provides for life and growth elsewhere, e.g., in the mosquito. 

 These persist in the circulation, in spite of heroic quinine treatment, 

 from two to six weeks, after all other parasites have disappeared. 



Subteitian malaria. Periodicity still definite. 



Subtertian malaria. Periodicity indefinite. 



Subtertian malaria (untreated). 

 Slight fever only. No definite 

 periodicity. Diagnosis based on 

 blood examination. 



Severe subtertian malaria 

 (treated). 



Quinine given very early may stop their formation, but later it has 

 no effect upon them. The presence of crescents is usually marked 

 with cachexia. 



It is common in all tropical regions. In the sub-tropics it occurs 



