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Mustufa MA, Bibi S, Raza SJ, Hasan SF, Siddiqui TR, Rakhia A, Munir MA, Merchant AA, Ahmed W. Seasonal Trends with the Comparison of Venous and Capillary Blood for Diagnosis of Malaria among Children in Karachi, Pakistan. IRANIAN JOURNAL OF PARASITOLOGY 2023; 18:342-350. [PMID: 37886248 PMCID: PMC10597885 DOI: 10.18502/ijpa.v18i3.13757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/14/2023] [Indexed: 10/28/2023]
Abstract
Background More than 250 million people are infected by malaria parasites annually while around one million children less than 5 years of age die every year due to malaria. We aimed to assess the seasonal trends and usefulness of capillary and venous blood for rapid diagnosis of malaria. Methods This cross-sectional study of 18 months duration was conducted at the National Institute of Child Health (NICH), Karachi. All patients reporting fever as chief complaint were recruited as study subjects. A semi-structured questionnaire was used to collect demographic information, presenting complaints, awareness of caregivers regarding malaria, preventive measures and history of malaria fever. Three ml Venous (2-3ml) as well as peripheral blood (3-4 drops) samples of all patients were collected for microscopy and rapid diagnostic tests (RDTs). Results Out of total 477 patients with fever Venous and Capillary Blood RDTs methods detected 33(6.9%) and 30(6.3%) as the malaria positive while Venous and Capillary Blood Microscopy detected 30(6.1%) and 32(6.7%) cases respectively. Plasmodium Vivax infection was the most prevalent (87.9%) and majority (39.39%) of the cases occurred in the quarter, July to September. Conclusion July to September is the peak season for malaria and P. Vivax (87.9%) is the predominant strain in Karachi. Venous and capillary blood are equally useful for malaria diagnosis however, convenience and less invasiveness may justify the preference of capillary blood over venous blood for early diagnosis of malaria.
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Affiliation(s)
| | - Safia Bibi
- National Institute of Health, Health Research Institute, Research Centre, National Institute of Child Health, Karachi, Pakistan
| | | | | | - Taranum Ruba Siddiqui
- National Institute of Health, Health Research Institute, Research Centre, Jinnah Post Graduate Medical Center, Karachi, Pakistan
| | - Allah Rakhia
- National Institute of Health, Health Research Institute, Research Centre, National Institute of Child Health, Karachi, Pakistan
| | - Muhammad Arif Munir
- National Institute of Health, Health Research Institute, Islamabad, Pakistan
| | | | - Waquarudin Ahmed
- National Institute of Health, Health Research Institute, Research Centre, Jinnah Post Graduate Medical Center, Karachi, Pakistan
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Rai A, Pinto DS, Rai P, Teerthanath S, Karunasagar I, Adiga R. Misidentification of Plasmodium Species by Cross-Reacting Primers and Cerebral Malaria Caused by Plasmodium vivax. JOURNAL OF HEALTH AND ALLIED SCIENCES NU 2023. [DOI: 10.1055/s-0043-1761258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Abstract
Introduction The clinical presentation of a case as cerebral malaria with molecular identification confirming it as Plasmodium vivax underlines the importance of using molecular tools to identify the species and type of malaria. The possibility of the relationship between the complication observed during clinical diagnosis and the multifactorial molecular changes could likely be the reason for terming it cerebral malaria.
Methods We report four cases analyzed using the quantitative buffy coat technique followed by classical Giemsa stained thick-film microscopy, and nested polymerase chain reaction for the genus-specific region of Plasmodium targeting 18S rDNA followed by species-specific identification with a different set of primers and products confirmation with sequencing.
Results Primers targeting P. knowlesi generated the expected product size of 153 base pairs that, upon sequencing, matched with the P. vivax sequence reflecting the relatedness of the species. Likewise, primers targeting P. ovale generated a 456 product whose sequence matched the P. vivax sequence.
Conclusion Infection with P. vivax can potentially cause cerebral malaria, and P. vivax can cause severe malaria complications alone or mixed with other species and can show cerebral malaria signs, which are typically associated with P. falciparum infections. The sequence relatedness reflects the genome similarity between P. knowlesi and P. ovale with P. vivax. The need to reconfirm with an additional set of newly reported primers is mandatory.
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Affiliation(s)
- Anoopkrishna Rai
- Division of Infectious Diseases, Nitte University Centre for Science Education and Research, Deralakatte, Mangaluru, Karnataka, India
| | - Deepak Sebastian Pinto
- Nitte University Centre for Science Education and Research, Deralakatte, Mangaluru, Karnataka, India
| | - Praveen Rai
- Division of Infectious Diseases, Nitte University Centre for Science Education and Research, Deralakatte, Mangaluru, Karnataka, India
| | - Srinivas Teerthanath
- Department of Pathology, K S Hegde Medical Academy, Deralakatte, Mangaluru, Karnataka, India
| | - Indrani Karunasagar
- Division of Infectious Diseases, Nitte University Centre for Science Education and Research, Deralakatte, Mangaluru, Karnataka, India
| | - Rama Adiga
- Division of Infectious Diseases, Nitte University Centre for Science Education and Research, Deralakatte, Mangaluru, Karnataka, India
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Mørch K, Manoharan A, Chandy S, Singh A, Kuriakose C, Patil S, Henry A, Chacko N, Alvarez-Uria G, Nesaraj J, Blomberg B, Kurian S, Haanshuus CG, Antony GV, Langeland N, Mathai D. Clinical features and risk factors for death in acute undifferentiated fever: A prospective observational study in rural community hospitals in six states of India. Trans R Soc Trop Med Hyg 2023; 117:91-101. [PMID: 36130240 PMCID: PMC9890314 DOI: 10.1093/trstmh/trac091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 06/08/2022] [Accepted: 09/06/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Acute undifferentiated fever (AUF) ranges from self-limiting illness to life-threatening infections, such as sepsis, malaria, dengue, leptospirosis and rickettsioses. Similar clinical presentation challenges the clinical management. This study describes risk factors for death in patients hospitalized with AUF in India. METHODS Patients aged ≥5 y admitted with fever for 2-14 d without localizing signs were included in a prospective observational study at seven hospitals in India during 2011-2012. Predictors identified by univariate analysis were analyzed by multivariate logistic regression for survival analysis. RESULTS Mortality was 2.4% (37/1521) and 46.9% (15/32) died within 2 d. History of heart disease (p=0.013), steroid use (p=0.011), altered consciousness (p<0.0001), bleeding (p<0.0001), oliguria (p=0.020) and breathlessness (p=0.015) were predictors of death, as were reduced Glasgow coma score (p=0.005), low urinary output (p=0.004), abnormal breathing (p=0.006), abdominal tenderness (p=0.023), leucocytosis (p<0.0001) and thrombocytopenia (p=0.001) at admission. Etiology was identified in 48.6% (18/37) of fatal cases. CONCLUSIONS Bleeding, cerebral dysfunction, respiratory failure and oliguria at admission, suggestive of severe organ failure secondary to systemic infection, were predictors of death. Almost half of the patients who died, died shortly after admission, which, together with organ failure, suggests that delay in hospitalization and, consequently, delayed treatment, contribute to death from AUF.
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Affiliation(s)
- Kristine Mørch
- Norwegian National Advisory Unit on Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021, Bergen, Norway.,Department of Clinical Science, University of Bergen, 5021, Bergen, Norway
| | - Anand Manoharan
- Infectious Diseases Training and Research Centre, Department of Medicine, Christian Medical College, 632004, Vellore, India
| | - Sara Chandy
- Infectious Diseases Training and Research Centre, Department of Medicine, Christian Medical College, 632004, Vellore, India
| | - Ashita Singh
- Baptist Christian Hospital, 784001, Tezpur, Assam, India
| | - Cijoy Kuriakose
- Christian Fellowship Hospital, 624619, Oddanchatram, Tamil Nadu, India
| | - Suvarna Patil
- B.K.L. Walawalkar Hospital, 415612, Ratnagiri, Maharashtra, India
| | - Anil Henry
- Christian Hospital, Mungeli, 495001, Chhattisgarh, India
| | | | | | - Joel Nesaraj
- Bethesda Hospital, 635802, Ambur, Tamil Nadu, India
| | - Bjørn Blomberg
- Norwegian National Advisory Unit on Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021, Bergen, Norway.,Department of Clinical Science, University of Bergen, 5021, Bergen, Norway
| | - Siby Kurian
- Infectious Diseases Training and Research Centre, Department of Medicine, Christian Medical College, 632004, Vellore, India
| | - Christel Gill Haanshuus
- Norwegian National Advisory Unit on Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021, Bergen, Norway
| | - George Vasanthan Antony
- Infectious Diseases Training and Research Centre, Department of Medicine, Christian Medical College, 632004, Vellore, India
| | - Nina Langeland
- Norwegian National Advisory Unit on Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021, Bergen, Norway.,Department of Clinical Science, University of Bergen, 5021, Bergen, Norway
| | - Dilip Mathai
- Infectious Diseases Training and Research Centre, Department of Medicine, Christian Medical College, 632004, Vellore, India
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Padubidri JR, Pinto AC, Kini JR, Kini H, Manoj MA, Singh T. Heat exertion precipitating shock and death in a case of previously undiagnosed sickle-cell disease. Med Leg J 2022:258172221114567. [PMID: 36134548 DOI: 10.1177/00258172221114567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sickle cell disease (SCD) is an autosomal recessive genetic condition characterized by the presence of a mutated form of haemoglobin (HbS). HbS polymerises into long needle-like fibres under low oxygen conditions, leading to the erythrocytes forming sickle shaped red blood cells. With repeated sickling, the red blood cells become irreversibly sickled and trapped within the circulation, and this leads to vaso-occlusive crisis. The patient, a 25-year-old female, previously undiagnosed with SCD, presented with high grade fever, splenomegaly and succumbed due to heat exertion precipitating sickling crisis, multiorgan failure and shock.
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Affiliation(s)
- Jagadish Rao Padubidri
- Department of Forensic Medicine and Toxicology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Amanda Christina Pinto
- Department of Pathology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Jyoti R Kini
- Department of Pathology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Hema Kini
- Department of Pathology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Matthew Antony Manoj
- Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Tanya Singh
- Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
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Alteration of Platelet Count in Patients with Severe Non-Plasmodium falciparum Malaria: A Systematic Review and Meta-Analysis. BIOLOGY 2021; 10:biology10121275. [PMID: 34943190 PMCID: PMC8698983 DOI: 10.3390/biology10121275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 11/16/2022]
Abstract
The understanding of platelet biology under physiological and pathological conditions like malaria infection is critical importance in the context of the disease outcome or model systems used. The importance of severe thrombocytopenia (platelet count < 50,000 cells (µL) and profound thrombocytopenia (platelet count < 20,000 cells/µL) in malaria patients remains unclear. This study aimed to synthesize evidence regarding the risks of severe and profound thrombocytopenia in patients with severe non-Plasmodium falciparum malaria. Our overall aim was to identify potential indicators of severe non-P. falciparum malaria and the Plasmodium species that cause severe outcomes. This systematic review was registered at the International Prospective Register of Systematic Reviews (PROSPERO) under registration ID CRD42020196541. Studies were identified from previous systematic reviews (n = 5) and the MEDLINE, Scopus, and Web of Science databases from 9 June 2019 to 9 June 2020. Studies were included if they reported the outcome of severe non-Plasmodium species infection, as defined by the World Health Organization (WHO) criteria, in patients with known platelet counts and/or severe and profound thrombocytopenia. The risk of bias was assessed using the Newcastle–Ottawa Scale (NOS). Data were pooled, and pooled prevalence (PP) and pooled odds ratios (ORs) were calculated using random effects models. Of the 118 studies identified from previous meta-nalyses, 21 met the inclusion criteria. Of the 4807 studies identified from the databases, three met the inclusion criteria. Nine studies identified from reference lists and other sources also met the inclusion criteria. The results of 33 studies reporting the outcomes of patients with severe P. vivax and P. knowlesi infection were pooled for meta-analysis. The PP of severe thrombocytopenia (reported in 21 studies) was estimated at 47% (95% confidence interval (CI): 33–61%, I2: 96.5%), while that of profound thrombocytopenia (reported in 13 studies) was estimated at 20% (95% CI: 14–27%, 85.2%). The pooled weighted mean difference (WMD) in platelet counts between severe uncomplicated Plasmodium infections (reported in 11 studies) was estimated at −28.51% (95% CI: −40.35–61%, I2: 97.7%), while the pooled WMD in platelet counts between severe non-Plasmodium and severe P. falciparum infections (reported in eight studies) was estimated at −3.83% (95% CI: −13.90–6.25%, I2: 85.2%). The pooled OR for severe/profound thrombocytopenia comparing severe to uncomplicated Plasmodium infection was 2.92 (95% CI: 2.24–3.81, I2: 39.9%). The PP of death from severe and profound thrombocytopenia was estimated at 11% (95% CI: 0–22%). These results suggest that individuals with severe non-P. falciparum infection (particularly P. vivax and P. knowlesi) who exhibit severe or profound thrombocytopenia should be regarded as high risk, and should be treated for severe malaria according to current WHO guidelines. In addition, severe or profound thrombocytopenia coupled with other clinical and microscopic parameters can significantly improve malaria diagnosis, enhance the timely treatment of malaria infections, and reduce the morbidity and mortality of severe non-P. falciparum malaria.
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Current Epidemiological Characteristics of Imported Malaria, Vector Control Status and Malaria Elimination Prospects in the Gulf Cooperation Council (GCC) Countries. Microorganisms 2021; 9:microorganisms9071431. [PMID: 34361867 PMCID: PMC8307262 DOI: 10.3390/microorganisms9071431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 11/23/2022] Open
Abstract
Malaria is the most common vector-borne parasitic infection causing significant human morbidity and mortality in nearly 90 tropical/sub-tropical countries worldwide. Significant differences exist in the incidence of malaria cases, dominant Plasmodium species, drug-resistant strains and mortality rates in different countries. Six Gulf Cooperation Council (GCC) countries (Bahrain, Kuwait, Qatar, Oman, Saudi Arabia and United Arab Emirates, UAE) in the Middle East region with similar climates, population demographics and economic prosperity are aiming to achieve malaria elimination. In this narrative review, all studies indexed in PubMed describing epidemiological characteristics of indigenous and imported malaria cases, vector control status and how malaria infections can be controlled to achieve malaria elimination in GCC countries were reviewed and discussed. These studies have shown that indigenous malaria cases are absent in Bahrain, Kuwait, Qatar and UAE and have progressively declined in Oman and Saudi Arabia. However, imported malaria cases continue to occur as GCC countries have large expatriate populations originating from malaria-endemic countries. Various malaria control and prevention strategies adopted by GCC countries including more stringent measures to reduce the likelihood of importing malaria cases by prior screening of newly arriving expatriates and vector elimination programs are likely to lead to malaria elimination in this region.
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Current Status and the Epidemiology of Malaria in the Middle East Region and Beyond. Microorganisms 2021; 9:microorganisms9020338. [PMID: 33572053 PMCID: PMC7915327 DOI: 10.3390/microorganisms9020338] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/22/2022] Open
Abstract
Vector-borne parasitic infectious diseases are important causes of morbidity and mortality globally. Malaria is one of the most common vector-borne parasitic infection and is caused by five Plasmodium species, namely P. falciparum, P. vivax, P. ovale, P. malariae, and P. knowlesi. Epidemiologically, differences in the patterns of malaria cases, causative agent, disease severity, antimicrobial resistance, and mortality exist across diverse geographical regions. The world witnessed 229 million malaria cases which resulted in 409,000 deaths in 2019 alone. Although malaria cases are reported from 87 countries globally, Africa bears the brunt of these infections and deaths as nearly 94% of total malaria cases and deaths occur in this continent, particularly in sub-Saharan Africa. Most of the Middle East Region countries are malaria-free as no indigenous cases of infection have been described in recent years. However, imported cases of malaria continue to occur as some of these countries. Indeed, the six Gulf Cooperation Council (GCC) countries have large expatriate population originating from malaria endemic countries. In this review, the current status and epidemiology of malaria in the Middle East Region countries and other malaria-endemic countries that are home to a large migrant workforce being employed in Middle East Region countries are discussed.
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Iqbal J, Al-Awadhi M, Ahmad S. Decreasing trend of imported malaria cases but increasing influx of mixed P. falciparum and P. vivax infections in malaria-free Kuwait. PLoS One 2020; 15:e0243617. [PMID: 33306727 PMCID: PMC7732060 DOI: 10.1371/journal.pone.0243617] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/20/2020] [Indexed: 01/22/2023] Open
Abstract
Malaria still continues to be the most important parasitic disease worldwide, affecting 228 million people and causing 405,000 deaths each year. In this retrospective study during 2013 to 2018, we documented the incidence of imported malaria infection and evaluated the impact of malaria preventive measures in Kuwait, a non-endemic country. The epidemiologic and demographic data of all malaria cases was collected from the Infectious Diseases Hospital, Kuwait where all suspected cases of malaria are referred for confirmation and therapeutic intervention. The diagnosis of malaria infection was done by microscopy of Giemsa stained blood films. Selected samples were retested with BinaxNOW® Malaria rapid test and molecular assay to reconfirm the Plasmodium spp. or mixed infection. Overall, 1913 (25.9%) malaria cases were detected, 81.5% of which were among male subjects. Male subjects had higher incidence of P. vivax malaria (113; 91.1%) and mixed infection with P. falciparum and P. vivax (1245; 90.0%) compared to females who had higher rate of P. falciparum infection (52.4%). An overwhelming majority of malaria cases (1895; 99.1%) were detected among expatriates from malaria-endemic countries; India (1012; 52.9%), Pakistan (390; 20.4%), Afghanistan (94; 4.9%) and African countries (313; 16.3%). Only 18 cases involved Kuwaiti nationals, all with a history of travel to African countries. The majority of malaria cases were detected during the summer and fall months (May-October). Our data showed that the incidence rate of imported malaria cases was stable during 2013 to 2018, however, the incidence of total malaria cases showed a declining trend over the years. This study confirms that the preventive program has been successful in reducing the incidence of imported malaria infections in Kuwait. The most striking finding of this study was high incidence of mixed infection with P. falciparum and P. vivax, with almost all (97%) cases among workers from India.
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Affiliation(s)
- Jamshaid Iqbal
- Department of Microbiology, Faculty of Medicine, Kuwait University, Kuwait, Kuwait
- * E-mail:
| | - Mohammad Al-Awadhi
- Department of Microbiology, Faculty of Medicine, Kuwait University, Kuwait, Kuwait
| | - Suhail Ahmad
- Department of Microbiology, Faculty of Medicine, Kuwait University, Kuwait, Kuwait
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Plasmodium spp. mixed infection leading to severe malaria: a systematic review and meta-analysis. Sci Rep 2020; 10:11068. [PMID: 32632180 PMCID: PMC7338391 DOI: 10.1038/s41598-020-68082-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/21/2020] [Indexed: 12/11/2022] Open
Abstract
Mixed Plasmodium malaria infections can lead to severe malaria. This systematic review and meta-analysis aimed to explore the prevalence of severe mixed Plasmodium malaria infection and to compare it with the prevalence of severe P. falciparum malaria mono-infection across the included studies. Original English-language research articles from PubMed, Scopus, and ISI Web of Science were identified and screened. Articles reporting the number of mixed infections and the number of severe mixed infections were used to determine the main outcome of this study, while the number of P. falciparum infections and the number of severe P. falciparum infections were used to determine the secondary outcome of this study. For the main outcome, the pooled prevalence and 95% confidence interval (CI) of severe mixed infections was analysed using STATA software version 15.0 (Stata Corp, College Station, TX, USA). For the secondary outcome, the rate of severe mixed infections compared to severe P. falciparum infections was analysed using the meta-analysis approach, and summary odds ratios (ORs) and 95% CIs were calculated. Random-effects models were used to produce the summary ORs. The Mantel–Haenszel method and calculated I2 were also reported to test whether there was heterogeneity among the included studies. Publication bias was also assessed using funnel plots. The meta-analysis of secondary outcomes was conducted using Review Manager 5.3 software (Cochrane Community). A total of 894,561 malaria patients were reported in all 16 included studies. Overall, a pooled analysis showed that 9% (2,006/35,768, 95% CI 7.0–12.0%) of patients with mixed Plasmodium infection had severe mixed infection. A meta-analysis of 14 studies demonstrated that patients with mixed Plasmodium infection (1,999/35,755) and patients with P. falciparum malaria (9,249/294,397) had an equal risk of developing severe malaria (OR 0.93, 95% CI 0.59–1.44). Both mixed infection and P. falciparum mono-infection showed a similar trend of complications in which severe anaemia, pulmonary failure, and renal impairment were the three most common complications found. However, patients with mixed infection had a higher proportion of severe anaemia and pulmonary complications than those with P. falciparum infection. Moreover, patients with mixed infection had a higher proportion of multiple organ failure than those with P. falciparum mono-infection. Mixed Plasmodium spp. infections were common but often unrecognized or underestimated, leading to severe complications among these malaria patients. Therefore, in routine clinical laboratories, using an accurate combination of diagnostic procedures to identify suspected patients with mixed infections is crucial for therapeutic decisions, prompt treatment, and effective patient management.
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