Segal H E, Wilkinson R N, Thiemanun W, Gresso W E, Gould D J
Bull World Health Organ. 1974;50(6):505-12.
A prospective longitudinal study of malaria incidence was carried out in randomly selected samples of the population in the villages of Bu Phram and Tablan, north-east Thailand. During the 10-month study period 46% of the 252 persons followed up experienced a falciparum parasitaemia, and 23% a vivax parasitaemia. The peak of the cases occurred during a 10-week period from late May to the end of July, with transmission apparently continuing, at lower levels, throughout the remainder of the study period. Falciparum infection rates were higher for residents of Bu Pham; vivax infection rates were the same in both villages. Certain indices declined with age in Bu Phram but not in Tablan residents. Parasite rates were higher for males than for females. Age-specific rates did not vary predictably. Infection of children aged less than one year was rare.
在泰国东北部布帕拉姆村和塔布兰村随机抽取的人群样本中，开展了一项关于疟疾发病率的前瞻性纵向研究。在为期10个月的研究期间，252名接受随访的人员中，46%出现了恶性疟原虫血症，23%出现了间日疟原虫血症。病例高峰出现在从5月下旬到7月底的10周期间，在研究期的剩余时间里，传播显然仍在较低水平持续。布帕姆村居民的恶性疟感染率较高；两个村庄的间日疟感染率相同。在布帕拉姆村，某些指标随年龄下降，但在塔布兰村居民中并非如此。男性的寄生虫感染率高于女性。特定年龄组的感染率变化无规律可循。一岁以下儿童感染罕见。
