Table 1.
Previous studies of vivax and ovale malaria in Cameroon.
Table 2.
Study Sites Characteristics (May-Sep 2023).
Fig 1.
Map of study area and distribution of households sampled and mosquito collections.
(A) Light grey areas represent administrative boundaries. Household and mosquito sampling locations are each randomly jittered a distance of 450m. (B) Map of Cameroon and surrounding countries with the region sampled is highlighted by the red box. Country border shape files available from Africa Geoportal (https://www.africageoportal.com/datasets/africa::africa-countries/explore) made from data from the USGS, available through the Esri Master License. Highway shape file from Humanitarian OpenStreetMap https://www.hotosm.org/ available through Open Database License. Health Area shapefiles provided by Office for Health Information System, Ministry of Public Health, Yaoundé, Cameroon and can be acquired from the Chief of Unit (through license https://data.humdata.org/dataset/cod-ab-cmr).
Table 3.
Community survey population and household characteristics.
Table 4.
Weighted prevalence and 95% CI of P. falciparum, P. ovale and P. vivax by site.
Fig 2.
Spatial distribution of (A) P. ovale spp. and (B) P. falciparum.
Black dotted line shows adaptive tolerance contours indicating areas of significantly increased risk of infection. Data layers for figure are available at https://doi.org/10.15139/S3/T61ZIQ. Health Area shapefiles provided by Cameroon National Malaria Control Program as in Fig 1.
Fig 3.
Parasitemia by fever status for P. falciparum and P. ovale spp.
Kruskal-Wallis chi-squared = 9.48, p = 0.002 for P. falciparum and Kruskal-Wallis chi-squared = 0.45, p-value = 0.50 for P. ovale spp. *: significant difference.
Fig 4.
Adjusted odds ratios of infection and 95% confidence intervals for individual and household characteristics.
CMR: Cameroon; Tx: treatment.
Table 5.
Relationship between mosquito abundance, biting rates, and malaria infections.
Fig 5.
Anopheles spp. abundance per night and household by collection.
CMR: Cameroon; Tx: treatment.