| a study on some aspects of the epidemiology of malaria in an endemic district in northern peninsular malaysia near thailand border. | a study on the distribution of malaria in hulu perak district, peninsular malaysia was carried out between january and december 1993. the study encompassed the distribution of malaria cases according to sex, age and profession. a total of 332 cases were recorded, with 182 cases occurring in males. the highest infection was observed in the above 15 years old age group. forest workers (loggers, rattan collectors and forest product gatherers) were the group most exposed to the disease (32.8%), foll ... | 1998 | 10437952 |
| significance of circumsporozoite-specific antibody in the natural transmission of plasmodium falciparum, plasmodium vivax, and plasmodium malariae in an aboriginal (orang asli) population of central peninsula malaysia. | two hundred and seventy-five orang asli volunteers living in nine villages in the pos legap valley of perak state, peninsular malaysia, participated in a prospective study designed to characterize the epidemiological, parasitological, and entomological characteristics of plasmodium falciparum, p. vivax, and p. malariae malaria transmission. prevalence rates for the three plasmodial species at initiation of the study ranged from 56% in the 0-4-year-old age group to 0% in individuals over the age ... | 1991 | 1867348 |