Williamson W A, Gilles H M
Ann Trop Med Parasitol. 1978 Aug;72(4):323-8. doi: 10.1080/00034983.1978.11719324.
Prior to longitudinal studies into the effects of malaria upon the immune response, nutritional status and haematological indices in young children in northern Nigeria, the degree of malarial endemicity in the area has been established. Field work was carried out in the wet seasons of 1976 and 1977 and the dry season of 1977 (April). Seasonal variation in transmission has been demonstrated. Age-specific parasite prevalence rates and splenic indices confirm previous studies that this northern part of the Guinea savannah belt of West Central Africa is an holoendemic area.
在对尼日利亚北部幼儿疟疾对免疫反应、营养状况和血液学指标的影响进行纵向研究之前，该地区疟疾流行程度已得到确定。1976年和1977年的雨季以及1977年旱季（4月）开展了实地工作。已证实传播存在季节性变化。特定年龄的寄生虫感染率和脾脏指数证实了先前的研究，即西非中部几内亚草原带的这一北部地区是一个高疟区。
