The phrase "a decrease in malaria" is correct and usable in written English.
You can use it when discussing trends or changes in the incidence or prevalence of malaria in a specific context, such as public health reports or research studies.
Example: "The recent public health initiatives have led to a significant decrease in malaria cases in the region."
Alternatives: "a reduction in malaria" or "a decline in malaria".
There has been a decrease in malaria across the region which national statistics and clinical diagnoses have not reflected.
The observed difference in the second year could be explained by a decrease in malaria transmission in the Tanzanian study during the study period, as recently suggested by Gosling et al. [55].
Taken together with both regional [32] evidence of a decrease in malaria transmission and a 70% decline in slide positivity in outpatients to Same hospital between 2002 and 2006 [41], these observations buttress our conclusion of a drop in transmission intensity in Same District in the mid- to late-1990s.
Activation of Akt signaling leads to a decrease in malaria infection intensity in mosquitoes [ 55].
In the past decade, a decrease in malaria endemicity has been recorded in most of sub-Saharan Africa.
Conversely, a reduction in the habitat of a brackish water vector has historically been associated with a decrease in malaria in Western Europe.
Using a drug availability index, the study of Pagnoni and others on community-based treatment of presumptive malaria in children showed a decrease in severe malaria in areas with good drug availability at health center level.
Interim data from studies of malaria in western Kenya before 2005 and 1-2 yeafterfter introduction of ACTs also show a mixed pattern, with some high transmission lowland areas showing a sharp decrease in malaria prevalence during early 2007, followed by a sharp increase in the late 2007-2008 [ 40].
38, 39, 49, 63, 65 Indeed, it has been observed that wherever a dramatic increase in transmission occurred after a sustained decrease in malaria incidence, many infections are caused by identical or highly related parasites (a so-called clonal expansion).
A WHO assessment of children of all ages in four regions of Ethiopia in 2007 revealed a 67% drop in confirmed malaria cases, a 54% decline in malaria admissions, and a 55% decrease in malaria deaths thanks to this approach.
For example, in generalised linear models, a small decrease in the temperature leads to a small decrease in malaria incidence.
