The emergence of SARS-CoV-2 has significantly altered the epidemiology of other infectious diseases, making investigations into its co-infection with malaria particularly relevant in endemic regions. This review examines the epidemiological, incubation and clinical features of the two diseases, high...lighting the diagnostic challenges and strategies for accurate detection. Emerging immunological and genetic evidence indicates that prior exposure to malaria may reduce the severity of outcomes of SARS-CoV-2 infection through mechanisms involving ACE2 downregulation, TLR signalling, T-cell activation and upregulation of coinhibitory receptors. Additionally, potential control measures are discussed, including vaccine development, the repurposing of antimalarial drugs, the exploration of natural products, innovations in bioinsecticides, and the strengthening of electronic disease surveillance. These insights provide valuable guidance for clinical management and public health policy, while emphasising the need for continued research into the complex interactions between SARS-CoV-2 and malaria.
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Malaria and HIV, two of the world’s most deadly diseases, are widespread, but their distribution overlaps greatly in sub-Saharan Africa. Consequently, malaria and HIV coinfection (MHC) is common in the region. In this paper, pertinent publications on the prevalence, impact, and treatment strategie...s of MHC obtained by searching major electronic databases (PubMed, PubMed Central, Google Scholar, ScienceDirect, and Scopus) were reviewed, and it was found that the prevalence of MHC in SSA was 0.7%–47.5% overall. Prevalence was 0.7%–47.5% in nonpregnant adults, 1.2%–27.8% in children, and 0.94%–37% in pregnant women. MHC was associated with an increased frequency of clinical parasitemia and severe malaria, increased parasite and viral load, and impaired immunity to malaria in nonpregnant adults, children, and pregnant women, increased in placental malaria and related outcomes in pregnant women, and impaired antimalarial drug efficacy in nonpregnant adults and pregnant women. Although a few cases of adverse events have been reported in coinfected patients receiving antimalarial and antiretroviral drugs concurrently, available data are very limited and have not prompted major revision in treatment guidelines for both diseases. Artemisinin-based combination therapy and cotrimoxazole are currently the recommended drugs for treatment and prevention of malaria in HIV-infected children and adults. However, concurrent administration of cotrimoxazole and sulfadoxine–pyrimethamine in HIV-infected pregnant women is not recommended, because of high risk of sulfonamide toxicity. Further research is needed to enhance our understanding of the impact of malaria on HIV, drug–drug interactions in patients receiving antimalarials and antiretroviral drugs concomitantly, and the development of newer, safer, and more cost-effective drugs and vaccines to prevent malaria in HIV-infected pregnant women.
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