Case of <i>Plasmodium knowlesi</i> Malaria in Poland Linked to Travel in Southeast Asia

Nowak, S; Zmora, Paweł; Pielok, Łukasz; Kuszel, Łukasz; Kierzek, Ryszard; Stefaniak, Jerzy; Paul, Małgorzata

doi:10.3201/eid2509.190445

Cited by 9 publications

(5 citation statements)

References 8 publications

(4 reference statements)

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“…To date, reports of naturally acquired P. knowlesi are limited to Asia. Isolated cases of human P. knowlesi infections have been reported in Europe, North America, Japan, Australia and New Zealand but all reported individuals had histories of travel to Southeast Asia (Kantele et al, 2008, Bronner et al, 2009, Ta et al, 2010, Berry et al, 2011, Hoosen and Shaw, 2011, Bart et al, 2013, Tanizaki et al, 2013, Cordina et al, 2014, Seilmaier et al, 2014, Mackroth et al, 2016, Ozbilgin et al, 2016, De Canale et al, 2017, Takaya et al, 2018, Nowak et al, 2019, Roe et al, 2020. There have been no published P. knowlesi reports in travellers or other individuals in Africa or South America, potentially due to diagnosis as other malaria species in endemic regions.…”

Section: Reporting Bias and Surveillance For P Knowlesimentioning

confidence: 99%

Epidemiology of the zoonotic malaria Plasmodium knowlesi in changing landscapes

Cuenca

Key

Jumail

et al. 2021

Current Research on Naturally Transmitted Plasmodium Knowlesi

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Section: Reporting Bias and Surveillance For P Knowlesimentioning

confidence: 99%

Epidemiology of the zoonotic malaria Plasmodium knowlesi in changing landscapes

Cuenca

Key

Jumail

et al. 2021

Current Research on Naturally Transmitted Plasmodium Knowlesi

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“…At the late trophozoite stage, P. knowlesi may appear as band forms, which resemble those of P. malariae. Hence, misidentification of knowlesi malaria as infections by P. falciparum or P. malariae is common, especially in areas where the microscopists are not familiar with the parasites [ 32 , 37 , 38 , 90 , 91 ]. Besides, parasites with atypical amoeboid morphology were also found in patient’s blood smears [ 92 ].…”

Section: Introductionmentioning

confidence: 99%

Plasmodium knowlesi: the game changer for malaria eradication

Lee

Cheong

Amir

et al. 2022

Malar J

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Plasmodium knowlesi is a zoonotic malaria parasite that has gained increasing medical interest over the past two decades. This zoonotic parasitic infection is prevalent in Southeast Asia and causes many cases with fulminant pathology. Despite several biogeographical restrictions that limit its distribution, knowlesi malaria cases have been reported in different parts of the world due to travelling and tourism activities. Here, breakthroughs and key information generated from recent (over the past five years, but not limited to) studies conducted on P. knowlesi were reviewed, and the knowledge gap in various research aspects that need to be filled was discussed. Besides, challenges and strategies required to control and eradicate human malaria with this emerging and potentially fatal zoonosis were described.

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“…The thrombocytopenia in the present study might be related to a high parasitaemia level, as presented by a study in Thailand [ 45 ]. A previous study reported that patients with P. knowlesi malaria demonstrated a decrease in coagulation system markers [ 46 ] or an increase in the proportion of platelet binding to infected red cells [ 47 ]. The risk factors for death from P. knowlesi infection demonstrated in Sabah, Malaysia, were female sex, age ≥ 45 years, cardiovascular disease, microscopic misdiagnosis, and delay in administrating intravenous treatment [ 48 ].…”

Section: Discussionmentioning

confidence: 99%

Prevalence of severe Plasmodium knowlesi infection and risk factors related to severe complications compared with non-severe P. knowlesi and severe P. falciparum malaria: a systematic review and meta-analysis

Kotepui

Milanez

et al. 2020

Infect Dis Poverty

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Background Plasmodium knowlesi is a potential cause of severe and fatal malaria, but comprehensive studies of its pooled prevalence and risk factors are lacking. This study aimed to explore the prevalence and risk factors related to severe P. knowlesi infection. Methods A systematic review was conducted by retrieving all published articles on severe P. knowlesi available in Web of Science (ISI), Scopus, and PubMed (MEDLINE). Titles, abstracts, and full-text articles were screened, and any irrelevant studies were excluded. The random-effects model was used to compute the pooled prevalence estimate of severe P. knowlesi infection by a metaprop command provided in STATA software. Differences in demographic characteristics, clinical characteristics, and laboratory data were analysed using Review Manager Version 5.3 software for patients in the following groups: 1) patients with severe and non-severe P. knowlesi infection and 2) patients with severe P. knowlesi and severe P. falciparum infection. Results Out of the 2382 studies retrieved from the three databases, seven studies with a total enrolment of 1124 patients with P. knowlesi infections were eligible to be included in this systematic review and meta-analysis. The pooled prevalence estimate of severe P. knowlesi infection was 19% (95% CI: 11–27%, I 2 = 93.7%). Severe acute kidney injuries (AKI) (77 cases, 45.6%), jaundice (71 cases, 42%), and hyperparasitaemia (55 cases, 32.5%) were the common clinical manifestations found among patients with severe complications. In comparison to non-severe P. knowlesi infections, patients with severe P. knowlesi infections had significantly higher age, leucocyte count, and parasitaemia levels ( P < 0.05). In comparison to patients with severe P. falciparum infections, patients with severe P. knowlesi infections had significantly higher age, neutrophil count, and creatinine levels ( P < 0.05). Conclusions This systematic review and meta-analysis demonstrated a high proportion of severe P. knowlesi infections. Patients with severe P. knowlesi infections had higher age, leucocyte count, and parasitaemia levels than those with non-severe P. knowlesi infections. In addition, patients with severe P. knowlesi infections had higher age, neutrophil count, and creatinine levels than those with severe P. falciparum infections.

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Case of Plasmodium knowlesi Malaria in Poland Linked to Travel in Southeast Asia

Cited by 9 publications

References 8 publications

Epidemiology of the zoonotic malaria Plasmodium knowlesi in changing landscapes

Epidemiology of the zoonotic malaria Plasmodium knowlesi in changing landscapes

Plasmodium knowlesi: the game changer for malaria eradication

Prevalence of severe Plasmodium knowlesi infection and risk factors related to severe complications compared with non-severe P. knowlesi and severe P. falciparum malaria: a systematic review and meta-analysis

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