This study investigated the prevalence of malaria, awareness level and treatment seeking behaviours in the crisis-hit community of Dumbu. The overall prevalence of malaria was low when compared to values of similar studies carried out in the Mount Cameroon region (Kimbi et al., 2005, Achidi et al., 2008). This observation might probably reflect the improvement in malaria control strategies, especially among the vulnerable groups in Cameroon by the government, consisting of the free distribution of long-lasting insecticide treated bed nets, as well as free treatment of malaria among children less than five years of age (Kimbi et al., 2012b). This agrees with a report from Kenya (Okiro et al., 2007), which showed that malaria morbidity and mortality is on a decline, as a result of scale up anti-malarial activities.
With respect to age groups, 11–25 recorded the highest. This may be due to the fact that these participants are all youths and occupy themselves with late nights keeping, early morning activities like farming and fishing. These periods are when the malaria vector activity is greatest, as such exposing themselves to the vector bites. Also, the high prevalence in this age group maybe due to the fact that they have little or no memory of the malaria parasites in their immune system. This was not the case with the greater than 50 years age group where the least percentage was recorded. This can be because they are an elderly set of participants, having little or no exposure time to the vector as they confine themselves in their homes before the peak of the vector activity. Also, they have been exposed to the parasite before and therefore their immune system generates a response to combat the parasitic attacks, hence justifying the low prevalence (Carter et al., 2002). The observed difference in prevalence with respect to age is consistent with the view that the speed of acquired anti-disease immunity depends on the frequency of parasite exposure from birth. Such variation in background immunity may also explain the differences in the age of presentation of severe malaria as reported previously (Bassat et al., 2008) or other undefined variables.
With respect to location, the Yaounde quarter recoded the highest prevalence of malaria. This quarter has a slow-moving stream that serves as a breeding site for the malaria vector. Stagnant water around residences was associated with significantly higher malaria parasite prevalence, when compared to those who did not have stagnant water around their home. This suggests that the presence of stagnant water around homes constitutes a risk factor that needs to be taken into consideration, when planning control measures against malaria, as malaria vectors need water for the survival of the immature stages. Furthermore, they live in mostly thatched and cracked wall houses as opposed to the prevalence recorded with the Fulani in the Hausa quarter. The finding seems to suggest that Semi-Bantu are more susceptible compared to the natural Dumbu people. Several studies have demonstrated differences in susceptibility to malaria, with the Fulani of West Africa having a lower incidence of malaria than other sympatric groups (Greenwood et al., 1987) and the Fulani in Burkina Faso being less parasitized than the sympatric Mossi and Rimaibé groups (Modiano et al., 1996). This is also true for the Malian Fulani and their sympatric neighbours, the Dogon (Dolo et al., 2005). Various markers confirm that the Fulani are genetically distinct from other African tribes (Israelsson et al., 2008). Such genetic differences may be less apparent in the Littoral and South West regions due to extensive ethnic mixing. However, previous results have also shown that this relative resistance to malaria in the Fulani, as compared to other sympatric tribes, appears to be pathogen related and not due to a general hyper-reactive immune system (Bolad et al., 2005).
Our finding on the awareness level of the cause of malaria was surprisingly great with 98.2% (378/385) knowing the correct cause of malaria to be resulting from mosquito bites. This is opposed to the findings of a study among 1,197 health service users in northern Cameroon, where only 1% identified mosquitoes as a source of malaria transmission (Einterz, 2003). This may have to do with the increased government efforts (Tsounkeu, 2009).
In this study, most respondents knew at least one sign or symptom of malaria compared to a study by Einterz and Bates (1997), in northern Cameroon where majority of participants incorrectly claimed they had fever. The general malaria high prevalence in Cameroon (50 to 70%) may be a contributing factor for this high knowledge. This discrepancy may also be linked to illiteracy, as many persons in the northern part of the country are less scholarised (Tsounkeu, 2009), but the inhabitants do take health related issues very seriously. Symptoms like headache, fever were well known by the population of Dumbu. Even though most respondents knew at least a symptom or sign of malaria, these were often considered as disease entities on their own which very often may lead to treatment of one symptom for long periods at home allowing the malaria to degenerate into complications. Malaria is well known among the natives of Cameroon, although the common symptoms and signs may not necessarily be compounded together to one disease entity (Lantum, 1971) as malaria.
It was discovered that 93.2% (359/385) of the respondents in our study preferred the standard medication, while 6.8% (26/385) preferred the herbal form of treatment. From the 93.2% (359/385), 50.7% (181/359) preferred the standard medication because it is very effective. Considering that many of the participants used the standard treatment methods, it indicates a good step for public health campaign. Although not presented in the results section, when these participants were asked why they preferred the herbal form of treatment, they complained about the distance of the health facilities and difficult economic situation. Remember that participants in this area have been living with the on-going socio-political crisis for more than 5 years which has crippled many people economically. Due to the on-going anglophone crisis in which the Dumbu has been affected, the prices of basic commodities as well as drugs have greatly increased, many persons have been displaced to neighbouring villages. This probably justifies why 6.8% (26/385) of the study population prefers herbal treatments as many and better herbalists are found in the neighbouring villages. From this 6.8% (26/385), 34.6% (9/26) preferred the herbal form because it is readily available.
The implications of using non-standardised traditional medicines over the conventional ones, are that improper use puts consumers at risk for potentially serious side effects as a result of allergies, drug interactions, contamination of the products with pesticides, heavy metals and other substances, or trauma inflicted by inexperienced or poorly trained practitioners. Therefore, the government of Cameroon should do all to ensure that its citizens have access to appropriate malaria treatment.
One important limitation of this study was that the time at which persons sought medical treatment was not assessed.