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- Title
Evidence of chikungunya virus infections among febrile patients at three secondary health facilities in the Ashanti and the Bono Regions of Ghana.
- Authors
Adusei, Jonathan Akwasi; Narkwa, Patrick Williams; Owusu, Michael; Domfeh, Seth Agyei; Alhassan, Mahmood; Appau, Emmanuel; Salam, Alimatu; Mutocheluh, Mohamed
- Abstract
Background: Chikungunya is now of public health concern globally due to its re-emergence in endemic areas and introduction into new areas of the world. Worldwide, the vectors for transmission of the chikungunya virus are Aedes mosquitoes and these are prevalent in Ghana. Despite its global significance, the true burden of chikungunya virus infection in Ghana is largely unknown and the threat of outbreak remains high owing to international travel. This study sought to determine chikungunya virus infection among febrile patients suspected of having malaria infections at some selected health facilities in the Ashanti, Bono East, and Bono Regions of Ghana. Methodology: This cross-sectional study recruited six hundred (600) febrile patients suspected of having malaria who submitted their clinical samples to the laboratories of the selected health facilities for the diagnosis of their infections. Five to ten millilitres (5-10ml) of venous blood were collected from each study participant. Sera were separated and tested for anti-chikungunya (IgM and IgG) antibodies using InBios ELISA kit following the manufacturer's instruction. Samples positive for chikungunya IgM and IgG were selected and tested for chikungunya virus RNA using Reverse Transcription-quantitative Polymerase Chain Reaction. Malaria Rapid Diagnostic Test kits were used to screen the participants for malaria. Structured questionnaires were administered to obtain demographic and clinical information of the study participants. Result: Of the 600 samples tested, the overall seroprevalence of chikungunya was 6%. The seroprevalence of chikungunya IgM and IgG antibodies were 1.8% and 4.2% respectively. None of the chikungunya IgM and IgG positive samples tested positive for chikungunya RNA by RT-qPCR. Of the 600 samples, tested 32.3% (194/600) were positive for malaria parasites. Malaria and chikungunya co-infection was detected in 1.8% (11/600) of the participants. Conclusion: Findings from the current study indicate low-level exposure to the chikungunya virus suggesting the virus is circulating and potentially causing morbidity in Ghana. Author summary: Chikungunya fever is a mosquito-borne disease of Chikungunya virus (CHIKV) origin that shares similar symptoms with malaria fever. The symptoms include fever, joint pains, muscle pains, skin rashes and headache. There is a paucity of information about CHIKV epidemiology in Ghana although the mosquito vector (Aedes) responsible for the transmission is present in the country. Ghana's neighbours (Ivory Coast and Burkina Faso) have also reported isolated cases of CHIKV infections. The authors sought to find evidence of the circulation of CHIKV among suspected malaria patients in Ghana and to shed light on the importance of the investigation of non-malaria causes of fever such as chikungunya fever. And the possible inclusion of chikungunya fever in the differential diagnoses of unexplained febrile cases in Ghana. We found out that 6% of the 600 people studied had antibodies to the CHIKV i.e. they were previously infected with CHIKV. Malaria prevalence was 32.3% among the study participants. The rate of malaria-chikungunya co-infections was 1.8% among the study participants. Our findings show a low-level exposure to the CHIKV suggesting the virus is circulating and potentially causing morbidity in Ghana that may be misdiagnosed as malaria.
- Subjects
GHANA; ASHANTI Region (Ghana); HEALTH facilities; VIRUS diseases; CHIKUNGUNYA virus; PUBLIC health; CHIKUNGUNYA; DENGUE hemorrhagic fever; JOINT pain
- Publication
PLoS Neglected Tropical Diseases, 2021, Vol 15, Issue 8, p1
- ISSN
1935-2727
- Publication type
Article
- DOI
10.1371/journal.pntd.0009735