Host-Parasite Relationships 541 



with other intestinal Protozoa. Malaria is widely distributed and of 

 common occurrence in Sarawak, New Guinea, Borneo, and other parts of 

 the East Indies and amoebiasis also is known to be common throughout 

 the region. In Melanesia, malaria is generally distributed in the New 

 Hebrides and Solomon Islands. In the Philippines, malaria (perhaps 

 more than a third of it malignant tertian) is common enough to be an 

 important health problem, and the incidence of amoebiasis also seems to 

 be fairly high. North of the Philippines, malaria extends into southern 

 Japan. 



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